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inquiryProduct name: L-Cysteine HCL Anhydrous CAS No.:52-89-1 Molecule Formula:C3H7NO2S·HCl Molecule Weight:157.62 Package: 25kg/drum Purity: 99.5% Description:White crystals or crystalline powder Manufacture Standards: FCCIV/AJI/USP
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inquiryAnalysis tests Standard Results Appearance White crystalline powder Conform Specific rotation
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inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystal or crystalline powder Storage:cool dry place Package:25kg/drum Application:food additive Transporta
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inquiry1.strict Quality control: Strictly in accordance with Chinese GMP(2010 version), guidelines issued by FDA,EDQM, and ICH relevant regulations, we have established a sound quality assurance system, implementing regular supervision and management in
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inquiryL-Cysteine hydrochloride Mono CAS No.:52-89-1 Name L-Cysteine hydrochloride anhydrous Molecular Structure Molecular Formula C3H7NO2S.HCl Molecular Weight 157.61 CAS Registry Number 52-89-1 EINECS
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inquiryProduct Description Product website: http://www.finerchem.com Product Name L-Cysteine hydrochloride anhydrous CAS No. 52-89-1
Cas:52-89-1
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inquiryProduct Name:Pentacetylglucose Chemical Name:L-Cysteine hydrochloride anhydrous Assay:≥99% (HPLC) Appearance:White Powder Molecular Formula:C3H8ClNO2S Melting Point:109-112 degree Appearance: white powder Storage:Store in cool and dry
Cas:52-89-1
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inquiryAppearance:White powder Storage:room temperature Package:25kg/drum Application:As dough conditioner. Transportation:Express/Sea/Air Port:any port in china
Cas:52-89-1
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Cas:52-89-1
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inquiryL-Cysteine hydrochloride anhydrous CAS 52-89-1 Molecular formula C3H8ClNO2S Molecular weight 157.62 Description White to light brown solid Specific rotation +5.6 - +8.9
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inquiry(3R)-2-methyl-4,5-dihydrothiazole-4-carboxylic acid methyl ester
l-cysteine hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride; water for 24h; Inert atmosphere; Reflux; | 94% |
N-(tert-butoxycarbonyl)-S-(N-methylcarbamoyl)cysteine methyl ester
A
l-cysteine hydrochloride
B
S-(N-methylcarbamoyl)cysteine hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride for 168h; | A 15% B 83% |
S-(diphenyl-4-pyridylmethyl)-L-cysteine
A
diphenyl(pyridin-4-yl)methanol
B
l-cysteine hydrochloride
Conditions | Yield |
---|---|
With mercury(II) diacetate In water; acetic acid for 0.25h; Product distribution; other reagent (zinc dust, 80percent acetic acid, 15 min); |
cycloforskamide
B
l-cysteine hydrochloride
C
L-valine hydrochloride
D
L-isoleucine hydrochloride
E
L-threonine methyl ester hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride; water at 110℃; for 24h; |
l-cysteine hydrochloride
benzaldehyde
(4R)-2-phenyl-1,3-thiazolidine-4-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: l-cysteine hydrochloride With sodium hydroxide In water Stage #2: benzaldehyde In ethanol; water at 20℃; for 3h; | 100% |
With potassium acetate In methanol; water at 0 - 25℃; for 6h; | 98% |
Stage #1: l-cysteine hydrochloride With potassium carbonate In water Stage #2: benzaldehyde In methanol; water at 25℃; for 3h; | 98% |
(9H-fluoren-9-yl)methyl 4-methylbenzenesulfonaye
l-cysteine hydrochloride
(R)-9H-fluorenyl-9-methyl-L-cysteine
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide | 100% |
formaldehyd
l-cysteine hydrochloride
(R)-thiazolidine-4-carboxylic acid hydrochloride
Conditions | Yield |
---|---|
at 20℃; for 1h; Solid phase reaction; cyclocondensation; | 100% |
Stage #1: formaldehyd; l-cysteine hydrochloride With sodium hydroxide In water at 20℃; for 24h; Stage #2: With pyridine In ethanol; water at 0℃; | 80% |
l-cysteine hydrochloride
benzonitrile
(4R)-2-phenyl-4,5-dihydro-1,3-thiazole-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol at 70℃; pH=7; aq. phosphate buffer; Inert atmosphere; | 99% |
With sodium hydrogencarbonate In methanol; aq. phosphate buffer for 72h; pH=6; Reflux; | 73% |
With piperidine; sodium hydrogencarbonate In ethanol |
Methoxycarbonylsulfenyl chloride
l-cysteine hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 0℃; for 1h; | 99% |
salicylonitrile
l-cysteine hydrochloride
(R)-2-(2-hydroxyphenyl)-4,5-dihydro-1,3-thiazole-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol; aq. phosphate buffer for 72h; pH=6; Reflux; | 99% |
Stage #1: salicylonitrile; l-cysteine hydrochloride With sodium hydrogencarbonate In ethanol for 0.5h; Heating; Stage #2: With piperidine In ethanol for 12h; pH=9; Heating; Stage #3: With hydrogenchloride In ethanol pH=1.5; | 67% |
l-cysteine hydrochloride
Conditions | Yield |
---|---|
With potassium carbonate In water; dimethyl sulfoxide at 20℃; for 0.166667h; Inert atmosphere; | 99% |
furfural
l-cysteine hydrochloride
(2RS,4R)-furan-2-yl-thiazolidine-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In ethanol; water for 6h; | 98% |
With sodium acetate In ethanol; water at 25℃; for 3h; | 87% |
With ethanol; potassium acetate |
Conditions | Yield |
---|---|
Stage #1: triphenylmethyl alcohol; l-cysteine hydrochloride With trifluoroacetic acid for 2h; Stage #2: With sodium acetate; sodium hydroxide In diethyl ether; water at 0℃; pH=5 - 6; | 98% |
With trifluoroacetic acid for 3h; Inert atmosphere; | 96% |
With choline chloride; urea In trifluoroacetic acid at 25℃; for 2h; | 95% |
Conditions | Yield |
---|---|
With sodium ethanolate In ethanol for 11h; Heating; | 98% |
l-cysteine hydrochloride
phenyl chloroformate
2-oxothiazolidine-4(R)-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide In toluene at 40℃; for 2h; | 98% |
Stage #1: l-cysteine hydrochloride With sodium hydroxide In water at 0 - 9℃; Stage #2: phenyl chloroformate In water; toluene at 25℃; for 2h; | 71% |
With sodium hydroxide In water; toluene at 0 - 30℃; for 2h; | |
With hydrogenchloride; sodium hydroxide In water; toluene at 25℃; for 2h; pH=1; |
l-cysteine hydrochloride
3-(3-tert-butoxycarbonylamino)benzonitrile
C15H18N2O4S
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol; aq. phosphate buffer for 72h; pH=6; Reflux; | 98% |
pentafluorobenzenesulfenyl chloride
l-cysteine hydrochloride
Conditions | Yield |
---|---|
In acetic acid at 70℃; for 3.5h; | 98% |
pentafluorobenzenesulfenyl chloride
l-cysteine hydrochloride
Conditions | Yield |
---|---|
With acetic acid In acetic acid at 70℃; for 3.5h; | 98% |
l-cysteine hydrochloride
7β-chloroacetamido-7α-methoxy-3-(1-methyl-1H-tetrazole-5-mercaptomethyl)-3-cephem-4-carboxylic acid
(6R,7S)-7-[(S)-2-(2-amino-2-carboxyethylmercapto)acetamido]-7-methoxy-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; sodium thiosulfate In water at 50℃; Concentration; Temperature; | 97.9% |
Conditions | Yield |
---|---|
With tris-(2-carboxyethyl)-phosphine hydrochloride In water at 20℃; for 3h; pH=Ca. 7; | 97% |
l-cysteine hydrochloride
4-cyanobenzaldehyde
(2RS,4R)-2-(4-cyano-phenyl)-thiazolidine-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In ethanol; water for 6h; | 96% |
With sodium hydroxide In ethanol; water | 63% |
With potassium acetate In methanol; water at 20℃; |
l-cysteine hydrochloride
2-nitro-benzaldehyde
(2RS,4R)-2-(2-nitro-phenyl)-thiazolidine-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In ethanol; water for 6h; | 96% |
With sodium hydrogencarbonate In water; dimethyl sulfoxide at 20℃; | 91% |
(2S)-2-[(tert-butyloxycarbonyl)amino]thiopropionic acid S-phenyl ester
l-cysteine hydrochloride
N-(tert-butoxycarbonyl)-L-alanyl-L-cysteine
Conditions | Yield |
---|---|
Stage #1: l-cysteine hydrochloride With sodium tetrahydroborate In methanol at 20℃; for 1h; Inert atmosphere; Stage #2: (2S)-2-[(tert-butyloxycarbonyl)amino]thiopropionic acid S-phenyl ester In methanol at 20℃; Inert atmosphere; | 96% |
Stage #1: l-cysteine hydrochloride With sodium tetrahydroborate In methanol for 1h; Inert atmosphere; Stage #2: (2S)-2-[(tert-butyloxycarbonyl)amino]thiopropionic acid S-phenyl ester In methanol |
Conditions | Yield |
---|---|
With sodium hydroxide In water; acetonitrile at 20℃; for 1h; Inert atmosphere; | 96% |
Conditions | Yield |
---|---|
With ammonia; ammonium bicarbonate In water at 20 - 50℃; for 0.5h; pH=7.5; Reagent/catalyst; Temperature; pH-value; Large scale; | 96% |
Conditions | Yield |
---|---|
Stage #1: 2-cyano-6-aminobenzothiazole; l-cysteine hydrochloride In methanol; water at 20℃; for 0.0833333h; Inert atmosphere; Stage #2: With potassium carbonate In methanol; water for 0.666667h; Inert atmosphere; | 96% |
l-cysteine hydrochloride
salicylaldehyde
(2RS,4R)-2-(2-hydroxy-phenyl)-thiazolidine-4-carboxylic acid
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In ethanol; water for 6h; | 95% |
With sodium hydrogencarbonate In water; dimethyl sulfoxide at 20℃; | 78% |
With ethanol; alkali cetate | |
With ethanol; alkali cetate | |
With sodium acetate In ethanol; water at 20℃; for 24h; |
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol; water for 48h; Ambient temperature; | 95% |
Conditions | Yield |
---|---|
With L-valine; acetic acid for 0.666667h; Ambient temperature; | 95% |
With hydrogen bromide glacial acetic acid, 21 deg C, 40 min; heating 45 min, 0.01 mm Hg; | 95% |
l-cysteine hydrochloride
acetone
2,2-dimethyl-thiazolidine-4(R)-carboxylic acid
Conditions | Yield |
---|---|
for 3.5h; Reflux; | 95% |
for 1.5h; Heating / reflux; | 92% |
for 6h; Reflux; | 88% |
Conditions | Yield |
---|---|
With choline chloride; urea In trifluoroacetic acid at 25℃; for 2h; | 95% |
(i) BF3-Et2O, AcOH, (ii) aq. NaOAc; Multistep reaction; |
Conditions | Yield |
---|---|
With choline chloride; urea In trifluoroacetic acid at 25℃; for 2h; | 95% |
(i) BF3-Et2O, AcOH, (ii) aq. NaOAc; Multistep reaction; |
Conditions | Yield |
---|---|
Stage #1: m-cyanophenol; l-cysteine hydrochloride With sodium hydrogencarbonate In ethanol for 1h; Heating; Stage #2: With piperidine In ethanol for 48h; pH=9; Heating; | 95% |
l-cysteine hydrochloride
2'-(2-hydroxyphenyl)-2'-thiazole-4'-carboxaldehyde
Conditions | Yield |
---|---|
With potassium acetate In ethanol; water at 20℃; for 1h; | 95% |
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