C15H10Cl2N2O2
321.2 g/mol
APIWarning
Lorazepam
CAS846-49-1EC212-687-6
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
Lorazepam is a benzodiazepine compound used as an active pharmaceutical ingredient in the manufacturing of medications. It is primarily supplied as a pharmaceutical raw material for formulations addressing anxiety, insomnia, seizures, and other clinical conditions.
active pharmaceutical ingredient for benzodiazepine medicationspharmaceutical raw material for anti-anxiety formulationscompound used in manufacturing of sedation and seizure-control products
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.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 846-49-1
Related Compounds
StrongForm Family
Lorazepam acetate
CAS2848-96-6
pharmaceutical raw material
SimilarStructure SimilarSimilarity 0.75
Oxazepam
CAS604-75-1
pharmaceutical raw material
ReferenceSame Category
Temazepam
CAS846-50-4
pharmaceutical raw material
ReferenceSame Category
Erdosteine
CAS84611-23-4
pharmaceutical raw material
ReferenceSame Category
Itraconazole
CAS84625-61-6
pharmaceutical raw material
ReferenceSame Category
Lorcaserin hydrochloride
CAS846589-98-8
pharmaceutical raw material
Referencestereoisomer of
(S)-lorazepam
CAS110032-65-0
pharmaceutical raw material
Referencesame scaffold
Lormetazepam
CAS848-75-9
pharmaceutical raw material
Safety Reference
Warning
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Lorazepam (CAS 846-49-1) is 2933.91.
HS code (international, 6-digit)
2933.91
EU CN code (8-digit)
2933 91 90
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-chlorophenyl)-3-hydroxy-1,3-dihydro-1,4-benzodiazepin-2-one
InChIKey
DIWRORZWFLOCLC-UHFFFAOYSA-N
SMILES
C1=CC=C(C(=C1)C2=NC(C(=O)NC3=C2C=C(C=C3)Cl)O)Cl
Synonyms (133)
- Lorazepam (JP18/USP/INN)
- Lorazepam for system suitability, European Pharmacopoeia (EP)
- Lorazepam, British Pharmacopoeia (BP)
- Lorazepam, European Pharmacopoeia (EP)
- Lorazepam, United States Pharmacopeia (USP)
- Lorazepamum [INN-Latin]
- Abbloraz
- Almazine
- Anxiedin
- Anxira
- Anzepam
- Aplacasse
- Aplacassee
- Apo Lorazepam
- Aripax
- Ativan
- Ativan (TN)
- Azurogen
- Bonatranquan
- Bonton
- DEA No. 2885
- Delormetazepam
- Demethyllormetazepam
- Donix
- Duralozam
- Durazolam
- Efasedan
- Emotion
- Emotival
- Equitam
- Idalprem
- Kalmalin
- LORAZEPAM [MART.]
- LOREEV XR
- Larpose
- Laubeel
- Lomesta
- Lopam
- Lorabenz
- Lorafen
- Loram
- Lorans
- Lorapam
- Lorat
- Lorax
- Loraz
- Lorazene
- Lorazep
- Lorazepam CRS - * psy
- Lorazepam Fabra
- Lorazepam Genericon
- Lorazepam Intensol
- Lorazepam Lannacher
- Lorazepam Medical
- Lorazepam civ
- Lorazepam neuraxpharm
- Lorazepam preservative free
- Lorazepam ratiopharm
- Lorazepam-Efeka
- Lorazepamum
- Lorazepan Chobet
- Lorazepan Richet
- Lorazin
- Lorazon
- Lorenin
- Loridem
- Lorivan
- Lorsedal
- Lorsilan
- Lorzem
- Lozepam
- Max Pax
- Medical, Lorazepam
- Merlit
- Nervistop L
- Norlormetazepam
- Novhepar
- Novo Lorazem
- Nu Loraz
- Orfidal
- Orfidal Wyeth
- Pro dorm
- Punktyl
- Quait
- Renaquil
- Rocosgen
- Securit
- Sedatival
- Sedazin
- Sedizepan
- Sidenar
- Silence
- Sinestron
- Somagerol
- Stapam
- Tavor
- Temesta
- Tolid
- Tranqipam
- Trapax
- Upan
- Vigiten
- Von Ct, Lorazep
- Wy 4036
- Wyeth, Orfidal
- Wypax
- lorazepam
- o-Chlorooxazepam
- o-Chloroxazepam