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Home/Compounds/Research Reagent/N,N'-Bis(1-hydroxyethylidene)cystine
C10H16N2O6S2
324.4 g/mol
Research Reagent

N,N'-Diacetyl-L-cystine

CAS5545-17-5EC226-911-5
Category
Research Reagent
Compound Class
Peptide
Primary Use
Research Compound

N,N'-Diacetyl-L-cystine is a disulfide-linked dimer of N-acetyl-L-cysteine. It is commonly used as an analytical reference standard for identifying and quantifying related impurities in acetylcysteine preparations.

analytical reference standard for impurity testingresearch compound for acetylcysteine-related studies

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Customs Tariff Classification

The international HS code for N,N'-Diacetyl-L-cystine (CAS 5545-17-5) is 2930.90.

HS code (international, 6-digit)

2930.90

EU CN code (8-digit)

2930 90 16

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

(2R)-2-acetamido-3-[[(2R)-2-acetamido-2-carboxyethyl]disulfanyl]propanoic acid

InChIKey

YTPQSLLEROSACP-YUMQZZPRSA-N

SMILES

CC(=O)N[C@@H](CSSC[C@@H](C(=O)O)NC(=O)C)C(=O)O

Synonyms (21)
  • D-7193
  • Acetylcysteine EP Impurity C; N,N'-Diacetyl-L-Cystine
  • N,N'-Diacetyl-L-cystine; Acetylcysteine Imp. C (EP); Acetylcysteine Impurity C
  • N,N-DiacetylcystineAcetylcysteine EP Impurity C(Discontinued,See C4X-153238)
  • (Ac-Cys-OH)
  • (Ac-Cys-OH)2
  • (Ac-Cys-OH)2 (Disulfide bond)
  • ACETYLCYSTEINE IMPURITY C
  • Acetylcysteine impurity C CRS
  • Cystine, N,N'-diacetyl-, L-
  • DiNAC
  • L-Cystine, N,N'-diacetyl-
  • N,N'-Diacetyl-L-cysteine
  • N,N'-Diacetyl-L-cystine
  • N,N'-Diacetylcystine

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