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API Reference Standards

Clonazepam

Reference StandardAvailable on request

Buy Clonazepam (CAS 1622-61-3) from Zemixal. Request a quote with price, lead time and documents. Quotes within one business day.

Pack sizes
Clonazepam chemical structure
CAS number1622-61-3
FormulaC15H10ClN3O3
Molar mass315.71 g/mol
Physical formSolid
HS code38229090
InChIKeyDGBIGWXXNGSACT-UHFFFAOYSA-N
IUPAC name5-(2-chlorophenyl)-7-nitro-1,3-dihydro-1,4-benzodiazepin-2-one

About Clonazepam

Analytical teams working on Clonazepam use Clonazepam as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 1622-61-3, formula C15H10ClN3O3 and molar mass 315.71 g/mol. It is handled as a solid.

Use cases we see most often

  • Identification & assay
  • Method development & validation
  • QC reference material

Safe handling

Classified under GHS with signal word Danger and hazard statements H336, H360, H361 and H362. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Clonazepam

See every impurity, metabolite and related compound we list for this API.

Clonazepam standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Specifications and identifiers

Specifications of Clonazepam
Product nameClonazepam
Catalogue numberZX-046032
CAS number1622-61-3
IUPAC name5-(2-chlorophenyl)-7-nitro-1,3-dihydro-1,4-benzodiazepin-2-one
Molecular formulaC15H10ClN3O3
Molar mass315.71 g/mol
Exact mass315.0411
GradeReference Standard
Physical formSolid
XLogP32.4
H-bond donors / acceptors1 / 4
Topological polar surface area87.3 Ų
HS code38229090
InChIKeyDGBIGWXXNGSACT-UHFFFAOYSA-N
SMILESC1C(=O)NC2=C(C=C(C=C2)[N+](=O)[O-])C(=N1)C3=CC=CC=C3Cl
PubChem CID2802
SynonymsClonazepam (WSM), Klonopin, Klonopin Rapidly Disintegrating, Clonazepam civ, 5-(2-Chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one, 2H-1,4-Benzodiazepin-2-one, 5-(2-chlorophenyl)-1,3-dihydro-7-nitro-, 1,3-Dihydro-7-nitro-5-(2-chlorophenyl)-2H-1,4.benzodiazepin-2-one, 5-(o-Chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one, 7-Nitro-5-(2-chlorophenyl)-3H-1,4-benzodiazepin-2(1H)-one, 2H-1,4-Benzodiazepin-2-one, 5-(o-chlorophenyl)-1,3-dihydro-7-nitro-, 5-(2-Chlorophenyl)-7-nitro-1,3-dihydro-2H-1,4-benzodiazepin-2-one, 5-(o-Chlorophenyl)-7-nitro-1H-1,4-benzodiazepin-2(3H)-one

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H336May cause drowsiness or dizziness
  • H360May damage fertility or the unborn child
  • H361Suspected of damaging fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H412Harmful to aquatic life with long lasting effects
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P203, P260, P261, P263, P264, P270, P271, P273, P280, P304 + P340, P318, P319, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Clonazepam
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Clonazepam

Which CAS number identifies Clonazepam?
Clonazepam is registered under CAS 1622-61-3. You may also see it listed as Clonazepam (WSM), Klonopin, Klonopin Rapidly Disintegrating. Our catalogue number for this item is ZX-046032.
What are the formula and molar mass of Clonazepam?
For Clonazepam, its formula is C15H10ClN3O3 and its molar mass is 315.71 g/mol. The systematic (IUPAC) name is 5-(2-chlorophenyl)-7-nitro-1,3-dihydro-1,4-benzodiazepin-2-one. InChIKey DGBIGWXXNGSACT-UHFFFAOYSA-N lets you match it in any structure database.
How is Clonazepam used in pharmaceutical QC?
Clonazepam is a characterised reference material linked to Clonazepam. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Clonazepam?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Clonazepam?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Clonazepam to my country?
Yes. Because Clonazepam is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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