CAS 345909-32-2 L-Cysteine hydrochloride monohydrate (HCID 23462)

Overview

L-cysteine hydrochloride hydrate is a hydrate that is the monohydrate form of L-cysteine hydrochloride. It has a role as a flour treatment agent, an EC 4.3.1.3 (histidine ammonia-lyase) inhibitor and a human metabolite. It contains a L-cysteine hydrochloride.

Names & identifiers

Preferred name: L-Cysteine hydrochloride monohydrate
IUPAC: (2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochloride
English name: L-Cysteine hydrochloride hydrate, 98.5-101.5%
Molecular formula: C3H10ClNO3S
Molecular weight: 175.6344

Names & synonyms

L-Cysteine hydrochloride monohydrate7048-04-6L-Cysteine hydrochloride hydrate345909-32-2H-Cys-OH.HCl.H2O(R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrateL-Cysteine (hydrochloride hydrate)L-Cysteine monohydrate monochloride(R)-2-Amino-3-mercaptopropanoic acid hydrochloride xhydrateCysteine HClL-Cysteine HCl hydrateL-CYSTEINE, HYDROCHLORIDE, HYDRATE (1:1:1)

Show more names

(2r)-2-Azaniumyl-3-Sulfanyl-PropanoateL-Cysteine hydrochloride hydrate, 98.5%L-Cysteine hydrochloride hydrate, 98.5-101.0%L-Cysteine hydrochloride hydrate, 98.5-101.5% 5GRL-CYSTEINE HYDROCHLORIDE HYDRATE, 98.5-101.5% USP/EP/BP

(2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochlorideMFCD00065606L-CYSTEINE HYDROCHLORIDE HYDRATE, 98.5-101.5%L-cysteine monohydrochloride monohydrateCysteine, hydrochloride, hydrate (1:1:1)L-CYSTEINE, HYDROCHLORIDE, MONOHYDRATEL-Cysteine hydrochloride monohydrate, USP gradeCysteine hydrochloride (USP)

Database identifiers

CAS: 345909-32-2、7048-04-6
PubChem CID: 23462
DTXSID: DTXSID90990688
ChEBI: CHEBI:91248
UNII: ZT934N0X4W
EC Number: 629-054-9

Properties

Computed structural properties

Topological polar surface area: 65.3 Å²
Hydrogen bond donors: 5
Hydrogen bond acceptors: 5
Rotatable bonds: 2
Heavy atoms: 9
Formal charge: 0
Complexity: 75.3

Experimental & physicochemical properties

Cosmetics · 2 items

Cosmetic ingredients (Cysteine HCl) -> CIR (Cosmetic Ingredient Review)

Reducing; Antioxidant

Physicochemical properties

storage temp.: 2 · 2-8°C
form: solid
color: white
optical activity: 23 · [α]23/D +5.2°, c = 2 in 5 M HCl
Major Application: peptide synthesis
InChI: 1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1
InChIKey: QIJRTFXNRTXDIP-JIZZDEOASA-N
SMILES: Cl[H].[H]O[H].N[C@@H](CS)C(O)=O
UNSPSC Code: 12352209 · 12352209
NACRES: 22 · NA.22
Symbol(GHS): 7 · GHS07
Signal word: Warning
Hazard statements: 315 · H315-H319-H335
Precautionary statements: 261 · P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs: Respiratory system
PPE: 95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes: Xi
Risk Statements: 36 · 36/37/38
Safety Statements: 26 · 26-36-26/36
WGK Germany: 3 · 3
HS Code: 29309090 · 29309090
Storage Class: 11 · 11 - Combustible Solids
Hazard Classifications: 2 Skin · Eye Irrit. 2Skin Irrit. 2STOT SE 3

Safety & regulation

GHS classification

GHS Classification · 6 items

Warning

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 39 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Warning

H302: Harmful if swallowed [Warning Acute toxicity, oral]

Hazard information

Regulatory Information · 2 items

Chemical: L-Cysteine, hydrochloride, monohydrate

Regulation (EC) No 1831/2003 (amended)

Other Safety InformationIMAP assessments - Cysteine and its salts: Human health tier II assessment

Hazard Classes and Categories · 2 items

Skin Irrit. 2 (100%)

Acute toxicity (ingestion) - category 4

Toxicology

Toxicity SummarySafe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org

Safety data

PPE: dust mask type N95 (US), Eyeshields, Gloves
wgk: 3
hs_code: 29309090
risk_code: 36/37/38
Signal word: Warning
Symbol(GHS): GHS07
hazard_code: Xi
safety_code: 26-36-26/36
Storage Class: 11 - Combustible Solids
target organs: Respiratory system
Hazard statements: H315-H319-H335
Hazard Classifications: Eye Irrit. 2Skin Irrit. 2STOT SE 3
Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338

Chemistry & industry

Uses & manufacturing

UsesCIR ingredient: Cysteine HCl

Household ProductsInformation on 1 consumer products that contain Cysteine Hcl in the following categories is provided:

Use ClassificationCosmetics -> Reducing; Antioxidant

Applications · 1 item

Usesis the Hydrated form of L-Cysteine(C995000). L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours. Acetylcysteine EP Impurity B

Suppliers30 total

郑州阿尔法化工有限公司+86-18530059196 · [email protected]

湖南韵邦生物科技股份有限公司85561037 15386497078 · [email protected]

上海毕得医药科技股份有限公司400-1647117 13681763483 · [email protected]

Syntechem Co.,Ltd[email protected]

上海迈瑞尔生化科技有限公司4006356688 18621169109 · [email protected]

Additional notes · 1 item

DefinitionChEBI: L-cysteine hydrochloride hydrate is a hydrate that is the monohydrate form of L-cysteine hydrochloride. It has a role as an EC 4.3.1.3 (histidine ammonia-lyase) inhibitor, a flour treatment agent and a human metabolite. It contains a L-cysteine hydrochloride.