C15H10FN3O3
299.26 g/mol
APIWarning
Norflunitrazepam
CAS2558-30-7EC219-878-3
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Norflunitrazepam, also known as desmethylflunitrazepam, is a benzodiazepine derivative that is a metabolite of flunitrazepam. It has been sold online as a designer drug and exhibits an IC50 value of 1.
pharmaceutical raw materialresearch compound for benzodiazepine receptor 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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Related Compounds
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Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for Norflunitrazepam (CAS 2558-30-7) 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
5-(2-fluorophenyl)-7-nitro-1,3-dihydro-1,4-benzodiazepin-2-one
InChIKey
KNGIGRDYBQPXKQ-UHFFFAOYSA-N
SMILES
C1C(=O)NC2=C(C=C(C=C2)[N+](=O)[O-])C(=N1)C3=CC=CC=C3F
Synonyms (26)
- 5-(2-Fluorophenyl)-7-nitro-1,3-dihydro-2H-1,4-benzodiazepin-2-one; Flunitrazepam Imp. B (EP); Demethylflunitrazepam; Desmethylflunitrazepam; Flunitrazepam Impurity B
- Flunitrazepam EP Impurity B
- Demethylflunitrazepam
- Desmethylflunitrazepam
- FLUNITRAZEPAM IMPURITY B
- Flunitrazepan, N-desmethyl
- Fonazepam;Norflunitrazepam
- J192.059F
- NORFLUNITRAZEPAM (NFLIS-DRUG)
- Norflunitrazepam
- RO 5-4435
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