C12H8N2O
196.2 g/mol
Research ReagentDanger
N-Nitrosocarbazole
CAS2788-23-0EC220-517-7
Category
Research Reagent
Compound Class
Other
Primary Use
Research Compound
N-Nitrosocarbazole is a nitrosamine impurity reference standard used in quality control testing. It is commonly employed in pharmaceutical research to monitor and quantify nitrosamine impurities in drug substances and products.
Nitrosamine impurity reference standardQuality control testing in pharmaceutical manufacturingAnalytical standard for nitrosamine quantification
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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Safety Reference
Danger
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H350May cause cancer
Customs Tariff Classification
The international HS code for N-Nitrosocarbazole (CAS 2788-23-0) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
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
9-nitrosocarbazole
InChIKey
XPKSVCWBMBPUPE-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C3=CC=CC=C3N2N=O
Synonyms (8)
- 9-Nitroso-9H-carbazole
- 9-Nitrosocarbazole
- 9H-Carbazole, 9-nitroso-
- CARBAZOLE, 9-NITROSO-
- Carprofen Nitroso Impurity 9
- N-Nitrosocarbazol
- N-Nitrosocarbazole
- NITROSOCARBAZOLE, N-
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