C17H14ClFN2O2
332.8 g/mol
APIWarning
N(sup 1)-(2-Hydroxyethyl)flurazepam
CAS20971-53-3
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
N(sup 1)-(2-Hydroxyethyl)flurazepam is a benzodiazepine derivative characterized by a 1,4-benzodiazepin-2-one core with chloro, fluorophenyl, and hydroxyethyl substituents. It is primarily significant as an active pharmaceutical ingredient used in pharmaceutical manufacturing and research.
pharmaceutical raw materialpharmaceutical impurity reference standard for analytical testing
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
SimilarStructure SimilarSimilarity 0.75
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Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for N(sup 1)-(2-Hydroxyethyl)flurazepam (CAS 20971-53-3) 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
7-chloro-5-(2-fluorophenyl)-1-(2-hydroxyethyl)-3H-1,4-benzodiazepin-2-one
InChIKey
FOCBRQQHNOKOJQ-UHFFFAOYSA-N
SMILES
C1C(=O)N(C2=C(C=C(C=C2)Cl)C(=N1)C3=CC=CC=C3F)CCO
Synonyms (21)
- 2-Hydroxyethylflurazepam
- Flurazepam Impurity 4
- Flurazepam, (N-hydroxyethyl)-
- Flurazepam, hydroxyethyl
- N-1-(Hydroxyethyl)flurazepam
- Ro 07-2750
- Ro 7-2750
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