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API Reference Standards

Cysteine Hydrochloride Monohydrate

Reference StandardIn stock

Order Cysteine Hydrochloride Monohydrate (CAS 7048-04-6) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
Cysteine Hydrochloride Monohydrate chemical structure
CAS number7048-04-6
FormulaC3H10ClNO3S
Molar mass175.64 g/mol
Physical formSolid
HS code38229090
InChIKeyQIJRTFXNRTXDIP-JIZZDEOASA-N
IUPAC name(2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochloride

About Cysteine Hydrochloride Monohydrate

Analytical teams working on Cysteine use Cysteine Hydrochloride Monohydrate as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 7048-04-6, formula C3H10ClNO3S and molar mass 175.64 g/mol. It is handled as a solid.

Typical applications

  • Identification & assay
  • Method development & validation
  • QC reference material

Handling and storage

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Cysteine

See every impurity, metabolite and related compound we list for this API.

Cysteine standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Cysteine Hydrochloride Monohydrate
Product nameCysteine Hydrochloride Monohydrate
Catalogue numberZX-006478
CAS number7048-04-6
Other CAS numbers52-90-4, 52-89-1
IUPAC name(2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochloride
Molecular formulaC3H10ClNO3S
Molar mass175.64 g/mol
Exact mass175.007
GradeReference Standard
Physical formSolid
H-bond donors / acceptors5 / 5
Topological polar surface area65.3 Ų
HS code38229090
InChIKeyQIJRTFXNRTXDIP-JIZZDEOASA-N
SMILESC([C@@H](C(=O)O)N)S.O.Cl
PubChem CID23462
SynonymsCysteine hydrochloride, (R)-Cysteine Hydrochloride Hydrate, (R)-2-Amino-3-mercaptopropanoic Acid Hydrochloride Hydrate, L-cysteine Hydrochloride Hydrate, Cysteine monohydrate hydrochloride, L-Cysteine hydrochloride monohydrate, H-Cys-OH.HCl.H2O, L-Cysteine (hydrochloride hydrate), L-Cysteine monohydrate monochloride, (R)-2-Amino-3-mercaptopropanoic acid hydrochloride xhydrate, Cysteine HCl, L-Cysteine HCl hydrate

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Cysteine Hydrochloride Monohydrate
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Cysteine Hydrochloride Monohydrate

Which CAS number identifies Cysteine Hydrochloride Monohydrate?
Cysteine Hydrochloride Monohydrate is registered under CAS 7048-04-6. You may also see it listed as Cysteine hydrochloride, (R)-Cysteine Hydrochloride Hydrate, (R)-2-Amino-3-mercaptopropanoic Acid Hydrochloride Hydrate. Our catalogue number for this item is ZX-006478.
What are the formula and molar mass of Cysteine Hydrochloride Monohydrate?
For Cysteine Hydrochloride Monohydrate, its formula is C3H10ClNO3S and its molar mass is 175.64 g/mol. InChIKey QIJRTFXNRTXDIP-JIZZDEOASA-N lets you match it in any structure database.
How is Cysteine Hydrochloride Monohydrate used in pharmaceutical QC?
Cysteine Hydrochloride Monohydrate is a characterised reference material linked to Cysteine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Cysteine Hydrochloride Monohydrate?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Cysteine Hydrochloride Monohydrate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Cysteine Hydrochloride Monohydrate to my country?
Yes. Because Cysteine Hydrochloride Monohydrate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

Other grades with CAS 7048-04-6

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