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C121800

Sigma-Aldrich

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

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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