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Amino Acids & Derivatives

D-Cysteine, 99%

Available on request

Order D-Cysteine, 99% (CAS 921-01-7) online at Zemixal: C3H7NO2S, COA and SDS with every lot, worldwide shipping. Ships from India to 120+ countries.

Pack sizes
D-Cysteine, 99% chemical structure
CAS number921-01-7
FormulaC3H7NO2S
Molar mass121.16 g/mol
Physical formCrystalline
HS code29181690
Purity99%
InChIKeyXUJNEKJLAYXESH-UWTATZPHSA-N
IUPAC name(2S)-2-amino-3-sulfanylpropanoic acid

About D-Cysteine, 99%

D-Cysteine, 99% is part of the Zemixal amino Acids & Derivatives range. For your records (99%), the material is defined by CAS 921-01-7, formula C3H7NO2S and molar mass 121.16 g/mol. Typical appearance is white powder or crystals or crystalline powder.

Typical applications

  • Peptide synthesis
  • Cell culture media
  • Biochemical research
  • Catalysis

Handling and storage

Reported physical data: melting point ~230 °C (dec.). Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Available as 100 mg, 1 g and 5 g. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Peptide synthesis
  • Cell culture media
  • Biochemical research
  • Catalysis

Applications

Specifications and identifiers

Specifications of D-Cysteine, 99%
Product nameD-Cysteine, 99%
Catalogue numberZX-002083
CAS number921-01-7
IUPAC name(2S)-2-amino-3-sulfanylpropanoic acid
Molecular formulaC3H7NO2S
Molar mass121.16 g/mol
Exact mass121.0197
Purity / assay99%
Physical formCrystalline
AppearanceWhite powder or crystals or crystalline powder
Melting point~230 °C (dec.)
XLogP3-2.5
H-bond donors / acceptors3 / 4
Topological polar surface area64.3 Ų
HS code29181690
InChIKeyXUJNEKJLAYXESH-UWTATZPHSA-N
SMILESC([C@H](C(=O)O)N)S
PubChem CID92851
Synonyms(S)-2-Amino-3-mercaptopropionic acid, Cysteine, D-, (S)-2-amino-3-mercaptopropanoic acid, D-Cystein, (S)-Cysteine, D-Zystein, D-Amino-3-mercaptopropionic acid, (2S)-2-amino-3-mercaptopropanoic acid, (2S)-2-azaniumyl-3-sulfanylpropanoate, D-Cys, (S)-2-amino-3-mercaptopropanoicacid, D-Amino-3-mercaptopropionate

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

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 D-Cysteine, 99%
100 mgQuoted on request
1 gQuoted on request
5 gQuoted on request

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

Questions about D-Cysteine, 99%

Which CAS number identifies D-Cysteine, 99%?
D-Cysteine, 99% is registered under CAS 921-01-7. You may also see it listed as (S)-2-Amino-3-mercaptopropionic acid, Cysteine, D-, (S)-2-amino-3-mercaptopropanoic acid. Our catalogue number for this item is ZX-002083.
What are the formula and molar mass of D-Cysteine, 99%?
For D-Cysteine, 99%, its formula is C3H7NO2S and its molar mass is 121.16 g/mol. The systematic (IUPAC) name is (2S)-2-amino-3-sulfanylpropanoic acid. InChIKey XUJNEKJLAYXESH-UWTATZPHSA-N lets you match it in any structure database.
What grade and pack sizes are available for D-Cysteine, 99%?
This listing is 99% purity. Standard packs are 100 mg, 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with D-Cysteine, 99%?
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 D-Cysteine, 99% to my country?
Yes. Because D-Cysteine, 99% 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.

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