Shipping to 128 countriesCOA and SDS with every lotQuotes within one business day
Bulk CASAccount
API Impurities

Zopiclone Impurity 2

Reference StandardIn stock

Order Zopiclone Impurity 2 (CAS 43200-82-4) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Zopiclone Impurity 2 chemical structure
CAS number43200-82-4
FormulaC11H5ClN4O2
Molar mass260.63 g/mol
Physical formSolid
HS code38229090
InChIKeyFFXYIKCDZBXDNR-UHFFFAOYSA-N
IUPAC name6-(5-chloro-2-pyridinyl)pyrrolo[3,4-b]pyrazine-5,7-dione

About Zopiclone Impurity 2

Zopiclone Impurity 2 is supplied by Zemixal as a characterised reference material for Zopiclone analysis. Key data (Reference Standard): CAS 43200-82-4, formula C11H5ClN4O2 and molar mass 260.63 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Warning: H302, H315, H317 and H319). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Zopiclone

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

Zopiclone standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of Zopiclone Impurity 2
Product nameZopiclone Impurity 2
Catalogue numberZX-005543
CAS number43200-82-4
IUPAC name6-(5-chloro-2-pyridinyl)pyrrolo[3,4-b]pyrazine-5,7-dione
Molecular formulaC11H5ClN4O2
Molar mass260.63 g/mol
Exact mass260.0101
GradeReference Standard
Physical formSolid
XLogP30.9
H-bond donors / acceptors0 / 5
Topological polar surface area76.1 Ų
HS code38229090
InChIKeyFFXYIKCDZBXDNR-UHFFFAOYSA-N
SMILESC1=CC(=NC=C1Cl)N2C(=O)C3=NC=CN=C3C2=O
PubChem CID6451973
Synonyms6-(5-Chloro-2-pyridyl)-5h-pyrrolo[34-b]pyrazine-5,7(6h)-dione, 6-(5-Chloro-2-pyridyl)-5h-pyrrolo[3,4-b]pyrazine-5,7(6h)-dione, 6-(5-Chloro-2-pyridinyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione, 6-(5-chloropyridin-2-yl)-5H,6H,7H-pyrrolo[3,4-b]pyrazine-5,7-dione, 6-(5-Chloropyridin-2-yl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione, 6-(5-chloro-2-piperidinyl)-5H-pyrazine-5,7(6H,7H)-dione, -5H-pyrrolo[3,4-b]pyrazine-5,7(6H), 6-(5-Chloro-2-pyridyl)-5H-pyrrolo(3,4-b)pyrazine-5,7(6H)-dione, 6-(5-Chloro-2-pyridinyl)-5H-pyrrolo(3,4-b)pyrazine-5,7(6H)-dione, 6-(5-chloropyridin-2-yl)pyrrolo[3,4-b]pyrazine-5,7-dione, Zopiclone Impurity 7, 5H-Pyrrolo[3,4-b]pyrazine-5,7(6H)-dione, 6-(5-chloro-2-pyridinyl)-

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

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P272, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + 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 Impurity 2
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Impurity 2

Which CAS number identifies Zopiclone Impurity 2?
Zopiclone Impurity 2 is registered under CAS 43200-82-4. You may also see it listed as 6-(5-Chloro-2-pyridyl)-5h-pyrrolo[34-b]pyrazine-5,7(6h)-dione, 6-(5-Chloro-2-pyridyl)-5h-pyrrolo[3,4-b]pyrazine-5,7(6h)-dione, 6-(5-Chloro-2-pyridinyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione. Our catalogue number for this item is ZX-005543.
What are the formula and molar mass of Zopiclone Impurity 2?
For Zopiclone Impurity 2, its formula is C11H5ClN4O2 and its molar mass is 260.63 g/mol. The systematic (IUPAC) name is 6-(5-chloro-2-pyridinyl)pyrrolo[3,4-b]pyrazine-5,7-dione. InChIKey FFXYIKCDZBXDNR-UHFFFAOYSA-N lets you match it in any structure database.
How is Zopiclone Impurity 2 used in pharmaceutical QC?
Zopiclone Impurity 2 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 Impurity 2?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Zopiclone Impurity 2?
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 Impurity 2 to my country?
Yes. Because Zopiclone Impurity 2 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.

More Zopiclone standards

More in API Impurities

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Compare 0 of 4Compare now