BOC-CYS-OH

BOC-CYS-OH Basic information

Product Name:	BOC-CYS-OH
Synonyms:	N-[(tert-Butyloxy)carbonyl]-L-cysteine;(S)-2-tert-Butoxycarbonylamino-3-mercapto-propionic acid;(2R)-2-(tert-butoxycarbonylamino)-3-mercapto-propionic acid;(2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-sulfanylpropanoic acid;(2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-sulfanyl-propanoic acid;Boc-Cys-OH,Boc-L-cysteine;(2R)-2-[(tert-butoxycarbonyl)aMino]-3-sulfanylpropanoic acid;N-Boc-L-cysteine
CAS:	20887-95-0
MF:	C8H15NO4S
MW:	221.27
EINECS:
Product Categories:	Boc-Amino acid series;Amino Acids;Pharmaceutical Intermediates
Mol File:	20887-95-0.mol

BOC-CYS-OH Chemical Properties

Melting point	67-70°C
Boiling point	361.4±37.0 °C(Predicted)
density	1?+-.0.06 g/cm3(Predicted)
storage temp.	Keep in dark place,Sealed in dry,2-8°C
solubility	DMSO (Slightly), Ethanol (Slightly, Sonicated), Methanol
form	Solid
pka	3.57±0.10(Predicted)
color	White to Off-White
optical activity	[α]20/D +8.0±1.5°, c = 1% in ethanol
BRN	2450705
CAS DataBase Reference	20887-95-0(CAS DataBase Reference)

Safety Information

Safety Statements	24/25
WGK Germany	3
HS Code	29309090

MSDS Information

Provider	Language
SigmaAldrich	English

BOC-CYS-OH Usage And Synthesis

Chemical Properties	light yellowliquid
Uses	Boc-L-cysteine is the protected form of L-Cysteine (C995000), a non-essential α-amino acid that is biosynthesized in humans. L-Cysteine is also a bicarbonate-sensitive endogenous excitotoxin in rats and possibly humans.

BOC-CYS-OH Preparation Products And Raw materials

Raw materials	BOC-CYS(ACM)-OH-->methyl 2-((tert-butoxycarbonyl)amino)-3-mercaptopropanoate-->(BOC-CYS-OH)2-->N-Boc-Benzotriazole-->Boc-S-(4-methylbenzyl)-L-cysteine-->BOC-CYS(4-MEOBZL)-OH-->Boc-S-Benzyl-L-cysteine-->L-Cysteine-->Di-tert-butyl dicarbonate-->L-Cysteine monohydrochloride
Preparation Products	2-Pyridinethione-->2-Hydroxypyridine-->3-Nitro-2-pyridinethiol

BOC-CYS(3,4-DIMETHYLBENZYL)-OH Boc-S-(4-methylbenzyl)-L-cysteine BOC-CYS(TBU)-OH BOC-CYS-OH BOC-CYS(ETHYLTHIO)-OH DCHA BOC-CYS(BZL)-ONP BOC-PEN(MOB)-OH Boc-S-Benzyl-L-cysteine BOC-CYS(FM)-OH BOC-CYS(ET)-OH BOC-BETA,BETA-DIMETHYL-L-CYS(ME)-OH DCHA BOC-CYS(4-MEOBZL)-OH BOC-S-(4-METHOXYBENZYL)-L-CYSTEINE DICYCLOHEXYLAMINE SALT BOC-CYS(ACM)-OH BOC-S-TERT-BUTYLMERCAPTO-L-CYSTEINE (Boc-Cys-OH)2 (Disulfide bond),(BOC-CYS-OH)2 BOC-CYS(ME)-OH BOC-L-THIAZOLIDINE-4-CARBOXYLIC ACID

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