L-(+)-Cysteine hydrochloride

CAS Registry Number®

52-89-1
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CAS Name

L-(+)-Cysteine hydrochloride

Molecular Formula

C3H7NO2S.ClH

Cite this Page

L-(+)-Cysteine hydrochloride.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=52-89-1 (retrieved 2022-07-02) (CAS RN: 52-89-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    170-178 °C (decomp)

Source(s)

Other Names and Identifiers

InChI

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

InChIKey

InChIKey=IFQSXNOEEPCSLW-DKWTVANSSA-N

SMILES

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

Canonical SMILES

Cl.O=C(O)C(N)CS

Other Names for this Substance

  • L-Cysteine, hydrochloride (1:1)
  • Cysteine, hydrochloride, L-
  • L-Cysteine, hydrochloride
  • Cysteine chlorohydrate
  • Cysteine hydrochloride

Deleted or Replaced CAS Registry Numbers

122641-75-2, 122882-13-7, 124558-06-1, 29844-56-2