Product Name

  • Name

    L-Valine benzyl ester 4-toluenesulfonate

  • EINECS 240-702-6
  • CAS No. 16652-76-9
  • Article Data9
  • CAS DataBase
  • Density
  • Solubility
  • Melting Point 160-162 °C
  • Formula C12H17NO2.C7H8O3S
  • Boiling Point 285.5 °C at 760 mmHg
  • Molecular Weight 379.477
  • Flash Point 143.7 °C
  • Transport Information
  • Appearance Crystalline
  • Safety 22-24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 16652-76-9 (L-Valine benzyl ester 4-toluenesulfonate)
  • Hazard Symbols
  • Synonyms O-Benzyl-L-valine toluene-p-sulphonate;Val-OBzl·TosOH;Val.obzl.tos;H-Val-OBzl·Tos;H-Val-OBzl.Tos;
  • PSA 115.07000
  • LogP 4.73590

Synthetic route

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

(S)-2-(Benzhydrylidene-amino)-3-methyl-butyric acid benzyl ester
138892-14-5

(S)-2-(Benzhydrylidene-amino)-3-methyl-butyric acid benzyl ester

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Conditions
ConditionsYield
In water; acetonitrile Ambient temperature;99%
L-valine
72-18-4

L-valine

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

benzyl alcohol
100-51-6

benzyl alcohol

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Conditions
ConditionsYield
In toluene for 5h; Reflux;91%
In benzene Heating;90%
In cyclohexane; water for 4h; Dean-Stark; Reflux;88%
In benzene for 23h; Reflux;
In water; toluene for 24h; Reflux; Dean-Stark;
...Expand
L-Valine methyl ester
4070-48-8

L-Valine methyl ester

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 87 percent
2: 1) 20percent aq.NaOH, Bu4NHSO4 / 1) MeCN, r.t., 16 h, 2) CH2Cl2, r.t., 6 h
3: 99 percent / acetonitrile; H2O / Ambient temperature
View Scheme
Methyl N-(diphenylmethylene)-L-valinate
138892-08-7

Methyl N-(diphenylmethylene)-L-valinate

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1) 20percent aq.NaOH, Bu4NHSO4 / 1) MeCN, r.t., 16 h, 2) CH2Cl2, r.t., 6 h
2: 99 percent / acetonitrile; H2O / Ambient temperature
View Scheme
L-valine benzyl ester
21760-98-5

L-valine benzyl ester

toluene-4-sulfonic acid
104-15-4

toluene-4-sulfonic acid

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Conditions
ConditionsYield
In diethyl ether
BOC-glycine
4530-20-5

BOC-glycine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

N-t-butoxycarbonylglycyl-L-valine benzyl ester
66415-00-7

N-t-butoxycarbonylglycyl-L-valine benzyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine100%
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 20℃; for 12h; Inert atmosphere;94%
With benzotriazol-1-ol; triethylamine; dicyclohexyl-carbodiimide In N,N-dimethyl-formamide 1.) 0 deg C, 2.) overnight, 4 deg C;89%
With 4-methyl-morpholine; isobutyl chloroformate 1.) THF, -15 deg C, 2.) DMF, a) -15 deg C, 30 min, b) r.t., 30 min.; Yield given. Multistep reaction;
t-Boc-L-valine
13734-41-3

t-Boc-L-valine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

(S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)-3-methylbutanoate
77443-49-3

(S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)-3-methylbutanoate

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine100%
With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃;99%
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 20℃; for 12h;87%
With triethylamine; dicyclohexyl-carbodiimide In N,N-dimethyl-formamide at 20℃; for 5h;26%
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 20℃; for 12h; Inert atmosphere;
L-N-Boc-Ala
15761-38-3

L-N-Boc-Ala

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Boc-L-Ala-L-Val-OBzl
116798-35-7

Boc-L-Ala-L-Val-OBzl

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine100%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile
114772-54-2

4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile

(S)-2-[(2'-cyanobiphenyl-4-ylmethyl)amino]-3-methylbutyric acid benzyl ester hydrochloride
137864-24-5

(S)-2-[(2'-cyanobiphenyl-4-ylmethyl)amino]-3-methylbutyric acid benzyl ester hydrochloride

Conditions
ConditionsYield
Stage #1: L-valine benzyl ester p-toluenesulfonate salt With sodium hydroxide In 5,5-dimethyl-1,3-cyclohexadiene; water at 20℃; pH=< 8.5 - 9; Large scale;
Stage #2: 4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile In 5,5-dimethyl-1,3-cyclohexadiene at 60℃; for 3.41667h; Large scale;
Stage #3: With hydrogenchloride In 5,5-dimethyl-1,3-cyclohexadiene; water at 72℃; for 2h; Dean-Stark; Large scale;		98%
Stage #1: L-valine benzyl ester p-toluenesulfonate salt; 4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile With tetrabutylammomium bromide; potassium carbonate; potassium iodide In water; toluene at 50 - 55℃; for 25h;
Stage #2: With hydrogenchloride In water; toluene pH=1 - 2; Product distribution / selectivity;		90%
Stage #1: L-valine benzyl ester p-toluenesulfonate salt; 4'-(bromomethyl)-1,1'-biphenyl-2-carbonitrile With tetrabutylammomium bromide; potassium carbonate; potassium iodide In water; toluene
Stage #2: With hydrogenchloride In water; toluene pH=1 - 2; Product distribution / selectivity;		90%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

(R)-Boc-leucine hydrate

(R)-Boc-leucine hydrate

benzotriazol-1-ol
2592-95-2

benzotriazol-1-ol

1-ethyl-3-(3-(dimethylammonio)propyl)carbodiimide perchlorate
56218-01-0

1-ethyl-3-(3-(dimethylammonio)propyl)carbodiimide perchlorate

citric acid
77-92-9

citric acid

Boc-D-Leu-Val-OBn
135219-63-5

Boc-D-Leu-Val-OBn

Conditions
ConditionsYield
With triethylamine In dichloromethane; water97.8%
...Expand
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Boc-Val-OPyCl
122751-34-2

Boc-Val-OPyCl

(S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)-3-methylbutanoate
77443-49-3

(S)-benzyl 2-((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanamido)-3-methylbutanoate

Conditions
ConditionsYield
97%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

1',3'-dohexadecyl N--L-glutamate
171195-66-7

1',3'-dohexadecyl N--L-glutamate

1',3'-dihexadecyl N-<1-(M-valinyl-O-benzyl ester)succinyl>-L-glutamate

1',3'-dihexadecyl N-<1-(M-valinyl-O-benzyl ester)succinyl>-L-glutamate

Conditions
ConditionsYield
With triethylamine In ethyl acetate for 24h; Ambient temperature;97%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

benzoic acid anhydride
93-97-0

benzoic acid anhydride

N-benzyl-L-valinol
42807-42-1

N-benzyl-L-valinol

Conditions
ConditionsYield
Stage #1: L-valine benzyl ester p-toluenesulfonate salt; benzoic acid anhydride With triethylamine In dichloromethane for 1h; Inert atmosphere;
Stage #2: With lithium aluminium tetrahydride In tetrahydrofuran for 2.25h; Inert atmosphere; Reflux;		97%
N-(Phenylacetyl)-L-alanine
718-07-0

N-(Phenylacetyl)-L-alanine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

N-(Phenylacetyl)-L-alanyl-L-valin-benzylester
116912-11-9

N-(Phenylacetyl)-L-alanyl-L-valin-benzylester

Conditions
ConditionsYield
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; N-ethyl-N,N-diisopropylamine In dichloromethane at 0℃; for 24h;96%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

n-valeryl chloride
638-29-9

n-valeryl chloride

3-methyl-2-(pentanoylamino)butyric acid benzyl ester

3-methyl-2-(pentanoylamino)butyric acid benzyl ester

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 10℃; for 1.75h;96%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

(S)-2-(benzyloxy)propanoic acid
33106-32-0

(S)-2-(benzyloxy)propanoic acid

(S)-benzyl 2-((S)-2-(benzyloxy)propanamido)-3-methylbutanoate
1239425-90-1

(S)-benzyl 2-((S)-2-(benzyloxy)propanamido)-3-methylbutanoate

Conditions
ConditionsYield
With 1-hydroxy-7-aza-benzotriazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃;95%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

N-tert-butyloxycarbonyl di-L-tryptophan
90826-08-7

N-tert-butyloxycarbonyl di-L-tryptophan

Boc-Trp-Trp-Val-OBzl
1311414-53-5

Boc-Trp-Trp-Val-OBzl

Conditions
ConditionsYield
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; for 24h; pH=8;95%
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0 - 20℃; for 26h; pH=8;95%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Boc-L-Abu(CN)ONSu
91126-95-3

Boc-L-Abu(CN)ONSu

Boc-Abu(CN)-Val-OBzl
91126-99-7

Boc-Abu(CN)-Val-OBzl

Conditions
ConditionsYield
With 4-methyl-morpholine In dichloromethane for 20h; Ambient temperature;94%
9-(2-Propenyl)-9H-fluorene-9-carboxylic acid
101451-35-8

9-(2-Propenyl)-9H-fluorene-9-carboxylic acid

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

(S)-2-[(9-Allyl-9H-fluorene-9-carbonyl)-amino]-3-methyl-butyric acid benzyl ester

(S)-2-[(9-Allyl-9H-fluorene-9-carbonyl)-amino]-3-methyl-butyric acid benzyl ester

Conditions
ConditionsYield
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In dichloromethane for 18h; Ambient temperature;94%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Cyclohexyl(isopropyl)ammonium (SS)-N-(N-tert-butyloxycarbonyl)-S-methyl S-phenyl sulfonimidoyl acetate

Cyclohexyl(isopropyl)ammonium (SS)-N-(N-tert-butyloxycarbonyl)-S-methyl S-phenyl sulfonimidoyl acetate

C25H32N2O6S
188633-67-2

C25H32N2O6S

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide93%
N-Boc-D-Leu
16937-99-8

N-Boc-D-Leu

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Boc-D-Leu-Val-OBn
135219-63-5

Boc-D-Leu-Val-OBn

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane at 0 - 20℃; for 6h;93%
N-[2-chloro-9-(tetrahydropyran-2-yl)-9H-purin-6-yl]-N-cyclopropylglycine
1185198-27-9

N-[2-chloro-9-(tetrahydropyran-2-yl)-9H-purin-6-yl]-N-cyclopropylglycine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

N-[2-chloro-9-(tetrahydropyran-2-yl)-9H-purin-6-yl]-N-cyclopropylglycyl-L-valine benzyl ester
1185198-46-2

N-[2-chloro-9-(tetrahydropyran-2-yl)-9H-purin-6-yl]-N-cyclopropylglycyl-L-valine benzyl ester

Conditions
ConditionsYield
Stage #1: N-[2-chloro-9-(tetrahydropyran-2-yl)-9H-purin-6-yl]-N-cyclopropylglycine With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃;
Stage #2: L-valine benzyl ester p-toluenesulfonate salt With 4-methyl-morpholine In tetrahydrofuran at 20℃; for 0.333333h; pH=9;
Stage #3: In tetrahydrofuran at 0 - 20℃; for 50h;		93%
9H-fluoren-9-ylmethyl (2-chloro-2-oxoethyl)carbamate
103321-49-9

9H-fluoren-9-ylmethyl (2-chloro-2-oxoethyl)carbamate

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Fmoc-Gly-Val-OBzl
221174-14-7

Fmoc-Gly-Val-OBzl

Conditions
ConditionsYield
With 1-Hydroxy-1,2,3-benzotriazole potassium salt In dichloromethane for 0.5h; Ambient temperature;92%
With silver cyanide; triethylamine In toluene at 60℃; 10-15 min;80%
C22H19BrN4O
1307853-49-1

C22H19BrN4O

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

C34H35N5O3
1307853-60-6

C34H35N5O3

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 50℃; for 3h; Product distribution / selectivity;92%
With N-ethyl-N,N-diisopropylamine In acetonitrile at 50℃; for 2h;
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

treprostinil
81846-19-7

treprostinil

C35H49NO6

C35H49NO6

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In dichloromethane; water at 20℃; for 2h;90.3%
BOC-L-aspartic acid 4-benzyl ester
7536-58-5

BOC-L-aspartic acid 4-benzyl ester

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Boc-Asp(OBzl)-Val-OBzl
110863-06-4

Boc-Asp(OBzl)-Val-OBzl

Conditions
ConditionsYield
Stage #1: BOC-L-aspartic acid 4-benzyl ester With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; under 750.075 Torr; for 0.5h; Inert atmosphere;
Stage #2: L-valine benzyl ester p-toluenesulfonate salt With 4-methyl-morpholine In tetrahydrofuran at 0 - 20℃; under 750.075 Torr; pH=8.5; Inert atmosphere;		90%
Stage #1: BOC-L-aspartic acid 4-benzyl ester With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 0℃; for 0.5h; Inert atmosphere;
Stage #2: L-valine benzyl ester p-toluenesulfonate salt With 4-methyl-morpholine In tetrahydrofuran at 0 - 20℃; pH=8.5; Inert atmosphere;		90%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine at 0 - 20℃; for 16h; Inert atmosphere; Green chemistry;70%
N-tert-butoxycarbonyl-L-phenylalanine
13734-34-4

N-tert-butoxycarbonyl-L-phenylalanine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate
136282-23-0

benzyl (tert-butoxycarbonyl)-L-phenylalanyl-L-valinate

Conditions
ConditionsYield
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 20℃; for 12h; Inert atmosphere;90%
N-tert-butyloxycarbonyl-L-tert-leucine
62965-35-9

N-tert-butyloxycarbonyl-L-tert-leucine

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

benzyl ((S)-2-((tert-butoxycarbonyl)amino)-3,3-dimethylbutanoyl)-L-valinate

benzyl ((S)-2-((tert-butoxycarbonyl)amino)-3,3-dimethylbutanoyl)-L-valinate

Conditions
ConditionsYield
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0 - 20℃; for 12h; Inert atmosphere;90%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

2-Bromoacetyl bromide
598-21-0

2-Bromoacetyl bromide

bromoacetyl valine benzyl ester
77434-37-8

bromoacetyl valine benzyl ester

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 5℃;88%
L-Lactic acid
79-33-4

L-Lactic acid

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

benzyl (2S)-2-{[(2S)-2-hydroxypropanoyl]amino}-3-methylbutanoate
1181104-59-5

benzyl (2S)-2-{[(2S)-2-hydroxypropanoyl]amino}-3-methylbutanoate

Conditions
ConditionsYield
With benzotriazol-1-ol; triethylamine; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃;88%
pent-4-enoic acid
591-80-0

pent-4-enoic acid

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

N-(4-pentenoyl)-(S)-valine benzyl ester

N-(4-pentenoyl)-(S)-valine benzyl ester

Conditions
ConditionsYield
With 4-methyl-morpholine; benzotriazol-1-ol; dicyclohexyl-carbodiimide In dichloromethane for 18h; Ambient temperature;87%
L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

(2S,3R)-3-[(tert-butoxycarbonyl) amino]-2-hydroxy-4-phenyl-butanoic acid
62023-65-8

(2S,3R)-3-[(tert-butoxycarbonyl) amino]-2-hydroxy-4-phenyl-butanoic acid

6-tert-butoxycarbonylamino-5-hydroxy-2-isopropyl-4-oxo-7-phenyl-3-azaheptanoic acid benzyl ester
246506-77-4

6-tert-butoxycarbonylamino-5-hydroxy-2-isopropyl-4-oxo-7-phenyl-3-azaheptanoic acid benzyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 20℃; for 12h;87%
diethylphosphinic chloride
1112-37-4

diethylphosphinic chloride

L-valine benzyl ester p-toluenesulfonate salt
16652-76-9

L-valine benzyl ester p-toluenesulfonate salt

Nα-diethylphosphinoylvaline benzyl ester
98748-17-5

Nα-diethylphosphinoylvaline benzyl ester

Conditions
ConditionsYield
With 4-methyl-morpholine In dichloromethane at 0℃; for 1h;86%

L-Valine benzyl ester 4-toluenesulfonate Chemical Properties


IUPAC Name: Benzyl (2S)-2-amino-3-methylbutanoate; 4-methylbenzenesulfonic acid
Molecular Formula: C12H17NO2.C7H8O3S
Molecular Weight: 379.47 g/mol
Canonical SMILES: CC1=CC=C(C=C1)S(=O)(=O)O.CC(C)C(C(=O)OCC1=CC=CC=C1)N
InChI: InChI=1S/C12H17NO2.C7H8O3S/c1-9(2)11(13)12(14)15-8-10-6-4-3-5-7-10;1-6-2-4-7(5-3-6)11(8,9)10/h3-7,9,11H,8,13H2,1-2H3;2-5H,1H3,(H,8,9,10)/t11-;/m0./s1
EINECS: 240-702-6
Product Categories: Amino Acid Derivatives; Amino Acids; Valine [Val, V]; Amino ester; Amino Acid Derivatives; Peptide Synthesis; Valine; Amino Acids; I - ZPeptide Synthesis; Modified Amino Acids
H-Bond Donor: 2  
H-Bond Acceptor: 6
Flash Point: 143.7 °C 
Enthalpy of Vaporization: 52.45 kJ/mol 
Boiling Point: 285.5 °C at 760 mmHg 
Melting Point: 160-162 °C
alpha: -3.7 °(c=3.2% in methanol)
storage temperature: -20 °C
Vapour Pressure of L-Valine benzyl ester 4-toluenesulfonate (CAS NO.16652-76-9): 0.0028 mmHg at 25 °C

L-Valine benzyl ester 4-toluenesulfonate Safety Profile

Safety Statements: 22-24/25 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes.
WGK Germany of L-Valine benzyl ester 4-toluenesulfonate (CAS NO.16652-76-9): 3

L-Valine benzyl ester 4-toluenesulfonate Specification

 L-Valine benzyl ester 4-toluenesulfonate (CAS NO.16652-76-9), its Synonyms are O-Benzyl-L-valine toluene-p-sulphonate ; Benzyl L-valinate p-toluenesulfonate ; H-Val-obzl p-tosylate ; H-Val-obzl tos ; H-Val-obzl tos-oh ; L-Valline benzyl ester p-toluenesulfonate salt ; L-Valine benzyl ester 4-toluenesulfonate salt ; L-Valine benzyl ester p-toluenesulfonate ; L-Valine benzyl ester p-toluenesulfonate salt . It is crystalline.

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