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Pharmacopeial Impurities (EP / USP / BP)

Zopiclone EP impurity C

Reference StandardIn stock

Buy Zopiclone EP impurity C (CAS 148891-53-6) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Zopiclone EP impurity C chemical structure
CAS number148891-53-6
FormulaC11H7ClN4O
Molar mass246.65 g/mol
Physical formSolid
HS code38229090
InChIKeyZWMNDASTKOEZHE-UHFFFAOYSA-N
IUPAC name6-(5-chloro-2-pyridinyl)-7H-pyrrolo[3,4-b]pyrazin-5-one

About Zopiclone EP impurity C

Zopiclone EP impurity C belongs to the Zopiclone reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 148891-53-6, formula C11H7ClN4O and molar mass 246.65 g/mol. It is handled as a solid.

Use cases we see most often

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H302, H312, H315 and H319. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Zopiclone

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

Zopiclone standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Zopiclone EP impurity C
Product nameZopiclone EP impurity C
Catalogue numberZX-006078
CAS number148891-53-6
IUPAC name6-(5-chloro-2-pyridinyl)-7H-pyrrolo[3,4-b]pyrazin-5-one
Molecular formulaC11H7ClN4O
Molar mass246.65 g/mol
Exact mass246.0308
GradeReference Standard
Physical formSolid
XLogP30.6
H-bond donors / acceptors0 / 4
Topological polar surface area59 Ų
HS code38229090
InChIKeyZWMNDASTKOEZHE-UHFFFAOYSA-N
SMILESC1C2=NC=CN=C2C(=O)N1C3=NC=C(C=C3)Cl
PubChem CID46782904
Synonyms6-(5-Chloro-2-pyridinyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one, 6-(5-Chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one, Eszopiclone Impurity C, 5H-Pyrrolo(3,4-b)pyrazin-5-one, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-, 5H-Pyrrolo[3,4-b]pyrazin-5-one, 6-(5-chloro-2-pyridinyl)-6,7-dihydro-, 6-(5-Chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo(3,4-b)pyrazin-5-one, Zopiclone specified impurity C, RP 48497 (Eszopiclone Impurity C), 6-(5-chloropyridin-2-yl)-7H-pyrrolo[3,4-b]pyrazin-5-one, Zopiclone Impurity C, RP 48497, 6-(5-chloro-2-pyridyl)-7H-pyrrolo[3,4-b]pyrazin-5-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 Warning

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation
  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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 Zopiclone EP impurity C
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 Zopiclone EP impurity C

Which CAS number identifies Zopiclone EP impurity C?
Zopiclone EP impurity C is registered under CAS 148891-53-6. You may also see it listed as 6-(5-Chloro-2-pyridinyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one, 6-(5-Chloropyridin-2-yl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazin-5-one, Eszopiclone Impurity C. Our catalogue number for this item is ZX-006078.
What are the formula and molar mass of Zopiclone EP impurity C?
For Zopiclone EP impurity C, its formula is C11H7ClN4O and its molar mass is 246.65 g/mol. The systematic (IUPAC) name is 6-(5-chloro-2-pyridinyl)-7H-pyrrolo[3,4-b]pyrazin-5-one. InChIKey ZWMNDASTKOEZHE-UHFFFAOYSA-N lets you match it in any structure database.
How is Zopiclone EP impurity C used in pharmaceutical QC?
Zopiclone EP impurity C is a characterised reference material linked to Zopiclone. 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 Zopiclone EP impurity C?
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 Zopiclone EP impurity C?
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 Zopiclone EP impurity C to my country?
Yes. Because Zopiclone EP impurity C 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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