Methyl alpha-D-galactopyranoside supplier

Name
METHYL-ALPHA-D-GALACTOPYRANOSIDE
EINECS 222-251-7
CAS No. 3396-99-4
Article Data154
CAS DataBase
Density 1.47 g/cm³
Solubility
Melting Point 116-117 oC
Formula C₇H₁₄O₆
Boiling Point 389.1 °C at 760 mmHg
Molecular Weight 194.185
Flash Point 189.1 °C
Transport Information
Appearance White Powder
Safety 24/25-22
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms Galactopyranoside,methyl, a-D- (8CI);1-O-Methyl-a-D-galactopyranoside;Methyl a-D-galactopyranoside;Methyl a-D-galactoside;Methyl a-galactopyranoside;NSC 33684;
PSA 99.38000
LogP -2.56730

Synthetic route

: 67-56-1
methanol

: 10257-28-0
D-Galactose

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With acetyl chloride for 0.583333h; Heating; microwave irradiation;	100%
Amberlite IR-120 (H+) resin for 24h; Heating;	55%
With hydrogenchloride
With Amberlite IR 120 (H+ form) for 0.333333h; Reflux; Microwave irradiation;
With acetyl chloride for 12h; Inert atmosphere; Reflux;

: 14315-82-3
methyl 2,3,4,6-tetra-O-benzoyl-α-D-galactopyranoside

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With palladium on activated charcoal; hydrogen In methanol; ethyl acetate for 3h; Molecular sieve;	100%

: 3601-36-3
methyl 2,3,6-tri-O-benzoyl-α-D-galactopyranoside

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With polymer-supported potassium thiophenolate In tetrahydrofuran; methanol at 80℃; for 2.5h;	98%
With Amberlyst A-26(OH) In methanol for 6h; Ambient temperature;	94%

: 5019-22-7
methyl 2,3,4,6-tetra-O-acetyl-α-D-galactopyranoside

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With tris(2,4,6-trimethoxyphenyl)phosphine In methanol at 20℃; for 30h;	93%
In methanol; water; triethylamine at 20℃; for 24h;
With methanol; sodium methylate at 20℃; Reagent/catalyst;	100 %Spectr.
With ammonium hydroxide In tetrahydrofuran; methanol

: 4288-93-1
methyl 4,6-O-benzylidene-α-D-galactopyranoside

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
tetrafluoroboric acid In acetonitrile at 20℃; for 0.2h;	87.2%

: 117858-45-4
methyl α-galactopyranoside 6-sulfate

A: 23339-18-6, 34339-61-2, 34340-42-6, 61278-06-6, 132074-93-2
methyl 2,3-dideoxy-α-D-threo-hexopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With sodium hydroxide at 100℃;	A 86% B n/a
With sodium hydroxide at 100℃; Title compound not separated from byproducts;	A 86% B n/a

: 67-56-1
methanol

: 10257-28-0
D-Galactose

A: 153831-23-3
Methyl α,β-D-galactofuranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With iron(III) chloride Heating;	A 65% B 24%

...Expand

: 67-56-1
methanol

: 59-23-4
D-Galactose

A: 3795-67-3
methyl α-D-galactofuranoside

B: 1824-93-7
methyl-β-D-galactofuranoside

C: 1824-94-8
methyl beta-D-galactopyranoside

D: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With amberlite IR-120H In methanol at 35℃; for 48h;	A 17 % Spectr. B 60% C 6 % Spectr. D 9 % Spectr.

...Expand

: 59-23-4
D-Galactose

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride; methanol

: 59-23-4
D-Galactose

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride; methanol; dimethylsulfite

: 40733-07-1
D-Galactose-dibenzyldithioacetal

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With methanol; mercury dichloride

: 67-56-1
methanol

: 10257-28-0
D-Galactose

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride for 16h; Heating;

...Expand

: 67-56-1
methanol

: 95753-50-7
C50H83NO21

A: 24884-17-1, 24952-23-6
C27H43NO2

B: 91-09-8
methyl-α-D-xylopyranoside

C: 97-30-3
methyl-alpha-D-glucopyranoside

D: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride for 2h; Heating; characterization by hydrolysis products;

...Expand

: 67-56-1
methanol

: 95753-49-4
C50H81NO21

A: 24884-09-1, 24884-20-6, 72075-40-2, 98102-07-9, 123877-47-4
C27H45NO2

B: 91-09-8
methyl-α-D-xylopyranoside

C: 97-30-3
methyl-alpha-D-glucopyranoside

D: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride for 2h; Heating; characterization by hydrolysis products;

...Expand

: 67-56-1
methanol

: 3-O-β-D-glucopyranosyl-(1->2)-<β-D-glucopyranosyl-(1->3)>-β-D-glucopyranosyl-(1->4)-β-D-galactopyranosyl-(25 R,S)-spirost-5-en-3β,14α-diol

A: 97-30-3
methyl-alpha-D-glucopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride; potassium hydroxide for 1h; Heating; Title compound not separated from byproducts;
With hydrogenchloride; potassium hydroxide for 1h; Product distribution; Heating;

...Expand

: 55908-11-7
1-O-methyl-4-keto-α-D-glucopyranoside

A: 97-30-3
methyl-alpha-D-glucopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With sodium tetrahydroborate In methanol
With sodium tetrahydroborate In methanol for 1h; Product distribution; Ambient temperature;

: 102823-45-0
methyl α-D-lyxo-hexopyranosid-4-ulose

A: 51224-40-9
(+)-Methyl-α-D-talopyranosid

B: 97-30-3
methyl-alpha-D-glucopyranoside

C: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With sodium tetrahydroborate In methanol Title compound not separated from byproducts;

...Expand

: 92516-72-8
C28H25O8(1+)

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With sodium methylate In methanol Yield given. Yields of byproduct given. Title compound not separated from byproducts;

: 67-56-1
methanol

: 4064-06-6
1,2:3,4-di-O-isopropylidene-α-D-galactopyranose

A: 1824-93-7
methyl-β-D-galactofuranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With iodine for 4h; Heating; Yield given. Yields of byproduct given;

...Expand

: 124-41-4
sodium methylate

: 1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

A: 644-76-8
1,6-anhydro-β-D-galactopyranose

B: 1824-94-8
methyl beta-D-galactopyranoside

C: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
In pyridine; methanol at 80℃; for 2.5h;

...Expand

: 1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

A: 644-76-8
1,6-anhydro-β-D-galactopyranose

B: 1824-94-8
methyl beta-D-galactopyranoside

C: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With sodium methylate In pyridine; methanol at 80℃; for 2.5h;

...Expand

: 67-56-1
methanol

: lecythophorin

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride Product distribution;

: 67-56-1
methanol

: 155-30-6
methyl 1-thio-β-D-galactopyranoside

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With iodine at 18 - 20℃; for 2h; Yield given. Yields of byproduct given;

...Expand

: 67-56-1
methanol

: 7493-95-0
4-nitrophenyl α-D-galactoside

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With α-D-galactosidase from Trichoderma reesei In water at 37℃; Rate constant; NaOAc buffer, pH 5.6;

: 123-91-1
1,4-dioxane

: 117858-45-4
methyl α-galactopyranoside 6-sulfate

lithium alanate: lithium alanate

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
Erhizten des Barium-Salzes;

...Expand

water-soluble polysaccharide from red seaweed Chondrus canaliculatus (Gigartinaceae), (Chile): water-soluble polysaccharide from red seaweed Chondrus canaliculatus (Gigartinaceae), (Chile)

A: 3396-99-4
methyl α-D-galactopyranoside

B: 42859-44-9
3,6-Anhydro-D-galactose-dimethylacetal

C: 19141-13-0
Carrabiose-dimethylacetal

Conditions

Conditions	Yield
methanolysis;	A 0.47 g B 0.16 g C 0.77 g

...Expand

: 7647-01-0
hydrogenchloride

: 67-56-1
methanol

: 616-42-2
dimethylsulfite

: 59-23-4
D-Galactose

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

...Expand

: 290359-93-2
(2R,3R,4S,5R,6S)-2-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-6-methoxy-tetrahydro-pyran-3,4,5-triol

: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With pyridine; ammonium cerium(IV) nitrate In acetone at 68℃; for 4h; pH=4.4;	94 % Chromat.

: 571194-37-1
Ectyoceramide

A: 1824-94-8
methyl beta-D-galactopyranoside

B: 3396-99-4
methyl α-D-galactopyranoside

Conditions

Conditions	Yield
With hydrogenchloride In methanol at 80℃; for 12h;

: 1125-88-8
benzaldehyde dimethyl acetal

: 3396-99-4
methyl α-D-galactopyranoside

: 64552-06-3
methyl 4,6-O-benzylidene-α-D-galactopyranoside

Conditions

Conditions	Yield
With camphor-10-sulfonic acid In chloroform at 65℃;	100%
With tetrafluoroboric acid In diethyl ether; N,N-dimethyl-formamide at 20℃; for 16h;	96%
With toluene-4-sulfonic acid; 1-butyl-3-methylimidazolium Tetrafluoroborate at 80℃; for 2h;	92%

: 13154-24-0
triisopropylsilyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

benzoyl haloide: benzoyl haloide

: C37H46O9Si

Conditions

Conditions	Yield
Stage #1: triisopropylsilyl chloride; methyl α-D-galactopyranoside With 1H-imidazole In N,N-dimethyl-formamide at 20℃; Stage #2: benzoyl haloide	100%

...Expand

: 98178-26-8
9-anthracenecarboxaldehyde dimethyl acetal

: 3396-99-4
methyl α-D-galactopyranoside

: 1041002-68-9
(2S,4aR,6S,7R,8R,8aR)-2-(anthracen-9-yl)-6-methoxyhexahydropyrano[3,2-d][1,3]dioxine-7,8-diol

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In acetonitrile at 20℃; for 16h;	100%

: 100-39-0
benzyl bromide

: 3396-99-4
methyl α-D-galactopyranoside

: 2771-55-3
2,3,4-tri-O-benzyl-D-galactopyranoside

Conditions

Conditions	Yield
With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 17h; Inert atmosphere;	100%

: 108-05-4
vinyl acetate

: 3396-99-4
methyl α-D-galactopyranoside

: 116187-86-1
((2R,3R,4S,5R,6S)-5-acetoxy-3,4-dihydroxy-6-methoxytetrahydro-2H-pyran-2-yl)methyl acetate

Conditions

Conditions	Yield
With immobilized Novozym 435 from Candida antarctica lipase B In tetrahydrofuran at 45℃; for 51h; Enzymatic reaction; regioselective reaction;	100%

: 108-24-7
acetic anhydride

: 3396-99-4
methyl α-D-galactopyranoside

: 5019-22-7
methyl 2,3,4,6-tetra-O-acetyl-α-D-galactopyranoside

Conditions

Conditions	Yield
With iodine at 20℃; for 0.15h;	99%
With lithium perchlorate for 30h; Heating;	99%
With iodine at 20℃; for 0.0833333h; Acetylation;	98%

: 3396-99-4
methyl α-D-galactopyranoside

: 74-88-4
methyl iodide

: 3149-64-2
(2S,3R,4S,5S,6R)-2,3,4,5-Tetramethoxy-6-methoxymethyl-tetrahydro-pyran

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside With sodium hydride In N,N-dimethyl-formamide; paraffin oil at 0℃; for 1h; Stage #2: methyl iodide In N,N-dimethyl-formamide; paraffin oil at 0 - 20℃; for 24h;	99%
Stage #1: methyl α-D-galactopyranoside With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.5h; Inert atmosphere; Stage #2: methyl iodide In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 4h; Inert atmosphere;	82%
With potassium fluoride on basic alumina In acetonitrile	80%

: 39234-86-1
3,5-bis(trifluoromethyl)benzenesulfonyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

: 1422662-83-6
methyl 3-O-[3,5-bis(trifluoromethyl)benzenesulfonyl]-α-D-galactopyranoside

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside With dibutyltin chloride In tetrahydrofuran at 20℃; for 0.166667h; Stage #2: 3,5-bis(trifluoromethyl)benzenesulfonyl chloride With 1,2,2,6,6-pentamethylpiperidine In tetrahydrofuran at 10℃; for 12h; regioselective reaction;	99%

: 98-88-4
benzoyl chloride

: 97-30-3
methyl-alpha-D-glucopyranoside

: 3396-99-4
methyl α-D-galactopyranoside

A: 88087-57-4
methyl O3-benzoyl-α-D-galactoside

B: 21056-53-1
methyl O2-benzoyl-α-D-glucoside

Conditions

Conditions	Yield
Stage #1: methyl-alpha-D-glucopyranoside; methyl α-D-galactopyranoside With dibutyltin chloride In tetrahydrofuran at 20℃; for 0.166667h; Stage #2: benzoyl chloride With 1,2,2,6,6-pentamethylpiperidine; tetra-(n-butyl)ammonium iodide In tetrahydrofuran at 20℃; chemoselective reaction;	A 99% B 19%

...Expand

: 2186-92-7
p-Anisaldehyde dimethyl acetal

: 3396-99-4
methyl α-D-galactopyranoside

: 185754-26-1
(2S,4aR,7R,8R,8aR)-6-methoxy-2-(4-methoxyphenyl)hexahydropyrano[3,2-d][1,3]dioxine-7,8-diol

Conditions

Conditions	Yield
With pyridinium p-toluenesulfonate In N,N-dimethyl-formamide at 80℃;	98%
With 3,4-bis((3,5-bis(trifluoromethyl)phenyl)amino)cyclobut-3-ene-1,2-dione In acetonitrile at 20℃; for 14h; Inert atmosphere;	82%
With (1S)-10-camphorsulfonic acid In acetonitrile at 50℃; under 225.023 Torr; for 2.5h; Inert atmosphere;

: 210532-25-5
3,5-difluorobenzenesulfonyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

: 1399293-35-6
methyl 3-O-(3,5-difluorobenzensulfonyl)-α-D-galactopyranoside

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside With dibutyltin chloride In tetrahydrofuran at 20℃; for 0.166667h; Stage #2: 3,5-difluorobenzenesulfonyl chloride With 1,2,2,6,6-pentamethylpiperidine In tetrahydrofuran at 10℃; for 12h; regioselective reaction;	98%

: 100-39-0
benzyl bromide

: 3396-99-4
methyl α-D-galactopyranoside

: 53008-63-2
methyl 2,3,4,6-tetra-O-benzyl-α-D-galactopyranoside

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 0.5h; Stage #2: benzyl bromide In N,N-dimethyl-formamide; mineral oil at 0 - 20℃;	97%
Stage #1: methyl α-D-galactopyranoside With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h; Inert atmosphere; Stage #2: benzyl bromide In N,N-dimethyl-formamide at 0 - 20℃; for 3h; Inert atmosphere;	96%
Stage #1: methyl α-D-galactopyranoside With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: benzyl bromide In N,N-dimethyl-formamide at 20℃;	95%

: 67-64-1
acetone

: 3396-99-4
methyl α-D-galactopyranoside

: 40269-01-0
methyl 3,4-O-isopropylidene-α-D-galactopyranoside

Conditions

Conditions	Yield
With nano n-propylsulfonated magnetic γ-Fe2O3 for 1.5h; Reflux;	97%
vanadyl triflate In acetonitrile at 20℃; for 11h;	80%
With iodine at 20℃; for 4h;	70%

: 100-44-7
benzyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

: 53008-63-2
methyl 2,3,4,6-tetra-O-benzyl-α-D-galactopyranoside

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside In toluene at 90 - 95℃; Stage #2: benzyl chloride With sodium hydride In toluene; paraffin oil at 35 - 95℃;	96.5%
With sodium hydride at 130℃;	78%
With potassium hydroxide Etherification; alkylation;

: 1125-88-8
benzaldehyde dimethyl acetal

: 3396-99-4
methyl α-D-galactopyranoside

: 4288-93-1
methyl 4,6-O-benzylidene-α-D-galactopyranoside

Conditions

Conditions	Yield
tetrafluoroboric acid In N,N-dimethyl-formamide at 20℃; for 4h;	96.4%
With sulfuric acid In methanol Heating;	96%
With camphor-10-sulfonic acid In acetonitrile at 20℃; for 15h; pH=3;	50%

: 939-26-4
2-bromomethylnaphthyl bromide

: 3396-99-4
methyl α-D-galactopyranoside

: 260411-21-0
methyl 3-O-NAP-α-D-galactoside

Conditions

Conditions	Yield
Stage #1: methyl α-D-galactopyranoside With di(n-butyl)tin oxide In benzene for 4h; Reflux; Stage #2: 2-bromomethylnaphthyl bromide With tetra-(n-butyl)ammonium iodide In benzene at 80 - 85℃; for 18h;	96%
Stage #1: methyl α-D-galactopyranoside With di(n-butyl)tin oxide In benzene for 4h; Metallation; Heating; Stage #2: 2-bromomethylnaphthyl bromide With tetra-(n-butyl)ammonium iodide at 80 - 85℃; for 18h; Alkylation;	93%

: 1469-70-1
allyl ethyl carbonate

: 3396-99-4
methyl α-D-galactopyranoside

: 25817-62-3
methyl 2,3,4,6-tetra-O-allyl-α-D-galactopyranoside

Conditions

Conditions	Yield
With tris(dibenzylideneacetone)dipalladium (0); 1,4-di(diphenylphosphino)-butane In tetrahydrofuran at 65℃; for 12h;	95%

: 98-59-9
p-toluenesulfonyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

: 74052-05-4
methyl 2,3,6-tri-O-p-tolylsulfonyl-α-D-galactopyranoside

Conditions

Conditions	Yield
With pyridine at 25℃; for 20h;	95%

: 944721-23-7
C16H11F13O

: 3396-99-4
methyl α-D-galactopyranoside

: 944720-95-0
C23H23F13O6

Conditions

Conditions	Yield
Stage #1: C16H11F13O With toluene-4-sulfonic acid; sodium sulfate; trimethyl orthoformate In acetonitrile at 20℃; Stage #2: methyl α-D-galactopyranoside In acetonitrile Further stages.;	95%

: 999-97-3
1,1,1,3,3,3-hexamethyl-disilazane

: 3396-99-4
methyl α-D-galactopyranoside

: 4133-45-3
methyl 2,3,4,6-tetra-O-trimethylsilyl-α-D-galactopyranoside

Conditions

Conditions	Yield
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 20℃; for 0.333333h; Inert atmosphere;	95%

: 58479-61-1
tert-butylchlorodiphenylsilane

: 3396-99-4
methyl α-D-galactopyranoside

: 114217-35-5
methyl 6-O-(tert-butyldiphenylsilyl)-α-D-galactopyranoside

Conditions

Conditions	Yield
With 1H-imidazole In N,N-dimethyl-formamide for 24h;	94%
With 1H-imidazole In N,N-dimethyl-formamide for 5h; Inert atmosphere;	92%
With 1H-imidazole	79%
With 1H-imidazole In N,N-dimethyl-formamide Ambient temperature;	76%
With pyridine Ambient temperature;

: 3396-99-4
methyl α-D-galactopyranoside

: 55908-11-7
1-O-methyl-4-keto-α-D-glucopyranoside

Conditions

Conditions	Yield
With phenyltrimethylammonium tribromide; potassium carbonate In tetrahydrofuran; methanol at 20℃; for 4h; Reagent/catalyst; regioselective reaction;	94%
With 3 A molecular sieve; bromine; bis(tri-n-butyltin)oxide 1) CHCl3, reflux, 3 h, 2) CHCl3, 0 deg C, 8 min; Yield given. Multistep reaction;

: 27150-99-8
1,1-dimethoxy-1-(4-methoxyphenyl)ethane

: 3396-99-4
methyl α-D-galactopyranoside

: 76513-59-2
methyl 4,6-O-<(4-methoxyphenyl)ethylidene>-α-D-galactopyranoside

Conditions

Conditions	Yield
With pyridinium p-toluenesulfonate In dichloromethane for 3h; Ambient temperature;	93%

: 774-48-1
(diethoxymethyl)benzene

: 3396-99-4
methyl α-D-galactopyranoside

: 4288-93-1
methyl 4,6-O-benzylidene-α-D-galactopyranoside

Conditions

Conditions	Yield
With camphor-10-sulfonic acid In chloroform Heating;	92%
With camphorsulfonic acid In chloroform Heating;	92%
With camphor-10-sulfonic acid In chloroform for 2h; Heating;

: 67-68-5
dimethyl sulfoxide

: 3396-99-4
methyl α-D-galactopyranoside

: (4aR,6S,6aR,11aS,11bS)-6-Methoxy-hexahydro-1,3,5,7,9,11-hexaoxa-cyclohepta[a]naphthalene

Conditions

Conditions	Yield
With trichlorophosphate at 65℃; for 0.5h;	92%
With thionyl chloride at 65℃; for 0.5h;	83%

: 18162-48-6
tert-butyldimethylsilyl chloride

: 3396-99-4
methyl α-D-galactopyranoside

: 181480-80-8
6-O-tert-butyldimethylsilanyl-1-O-methyl-α-D-galactopyranoside

Conditions

Conditions	Yield
With 1H-imidazole In N,N-dimethyl-formamide at 0℃; for 19h;	92%
With triethylamine; N,N-dimethyl-formamide In acetonitrile at 20℃; for 0.5h; regioselective reaction;	89%
With pyridine; dmap at 0 - 20℃;	81%

Methyl alpha-D-galactopyranoside Chemical Properties

IUPAC name: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-methoxyoxane-3,4,5-triol
Molecular Formula: C₇H₁₄O₆
Molecular Weight: 194.18 g/mol
EINECS: 222-251-7
Storage temp.: 2-8 °C
Melting point: 116-117 °C
Index of Refraction: 1.548
Surface Tension: 68.3 dyne/cm
Density: 1.47 g/cm³
Flash Point: 189.1 °C
Appearance: White Powder
Enthalpy of Vaporization: 73.83 kJ/mol
Boiling Point: 389.1 °C at 760 mmHg
Vapour Pressure: 1.15E-07 mmHg at 25 °C
Product Categories: Sugars, Carbohydrates & Glucosides;Sugars;Galactose;13C & 2H Sugars;Biochemistry;
Carbohydrates & Derivatives;Glycosides
Following is the structure of Methyl alpha-D-galactopyranoside (CAS NO.3396-99-4):

Methyl alpha-D-galactopyranoside Toxicity Data With Reference

Methyl alpha-D-galactopyranoside (CAS NO.3396-99-4) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated.

Methyl alpha-D-galactopyranoside Safety Profile

Safety Statements: 24/25-22
S24/25:Avoid contact with skin and eyes.
S22:Do not breathe dust.
WGK Germany: 3
F: 3-10

Methyl alpha-D-galactopyranoside Specification

Methyl alpha-D-galactopyranoside , its cas register number is 3396-99-4. It also can be called hexopyranoside, methyl ; and Methyl hexopyranoside . It is stable. But it incompatible with strong oxidizing agents. Methyl alpha-D-galactopyranoside (CAS NO.3396-99-4) should avoid the condition like incompatible materials and light. Its hazardous decomposition products are carbon monoxide, carbon dioxide. Its hazardous polymerization will not occur.

Product Name

METHYL-ALPHA-D-GALACTOPYRANOSIDE

Synthetic route

Methyl alpha-D-galactopyranoside Chemical Properties

Methyl alpha-D-galactopyranoside Toxicity Data With Reference

Methyl alpha-D-galactopyranoside Safety Profile

Methyl alpha-D-galactopyranoside Specification

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