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Merck
CN

C121800

L-Cysteine hydrochloride hydrate

99%, for peptide synthesis

Synonym(s):

L-Cysteine·HCl hydrate

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About This Item

Linear Formula:
HSCH2CH(NH2)CO2H·HCl·xH2O
CAS Number:
345909-32-2
Molecular Weight:
157.62 (anhydrous basis)
EC Number:
200-157-7
MDL number:
MFCD00065606
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
24892385
NACRES:
NA.22

Key Documents

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Product Name

L-Cysteine hydrochloride hydrate, 99%

Assay

99%

form

solid

optical activity

[α]23/D +5.2°, c = 2 in 5 M HCl

reaction suitability

reaction type: solution phase peptide synthesis

technique(s)

affinity chromatography: suitable

color

white

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

Cl[H].[H]O[H].N[C@@H](CS)C(O)=O

InChI

1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1

InChI key

QIJRTFXNRTXDIP-JIZZDEOASA-N

General description

L-Cysteine hydrochloride hydrate also known as L-Cysteine·HCl hydrate, is commonly used as a starting material in the synthesis of L-cysteine (alkylated, acidic, and alcoholic) derivatives.

Application

L-Cysteine hydrochloride hydrate is used as a standard solution to determine the quantity of thiol groups attached on mucoadhesiveness.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV1653
MKBN7482V
MKBH1166V
MKBK3918V
079K1486

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