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API Impurities

7-Deazapurine

Reference StandardAvailable on request

7-Deazapurine (CAS 271-70-5) supplier Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-036704.

Pack sizes
7-Deazapurine chemical structure
CAS number271-70-5
FormulaC6H5N3
Molar mass119.12 g/mol
Physical formSolid
HS code38229090
InChIKeyJJTNLWSCFYERCK-UHFFFAOYSA-N
IUPAC name7H-pyrrolo[2,3-d]pyrimidine

About 7-Deazapurine

7-Deazapurine is supplied by Zemixal as a characterised reference material for Tofacitinib analysis. Key data (Reference Standard): CAS 271-70-5, formula C6H5N3 and molar mass 119.12 g/mol. It is handled as a solid.

Typical applications

  • Analytical method development
  • Method validation (AMV)
  • 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.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with 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 Tofacitinib

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

Tofacitinib standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 7-Deazapurine
Product name7-Deazapurine
Catalogue numberZX-036704
CAS number271-70-5
IUPAC name7H-pyrrolo[2,3-d]pyrimidine
Molecular formulaC6H5N3
Molar mass119.12 g/mol
Exact mass119.0483
GradeReference Standard
Physical formSolid
XLogP30.7
H-bond donors / acceptors1 / 2
Topological polar surface area41.6 Ų
HS code38229090
InChIKeyJJTNLWSCFYERCK-UHFFFAOYSA-N
SMILESC1=CNC2=NC=NC=C21
PubChem CID261591
Synonyms3h-pyrrolo[2,3-d]pyrimidine, 7h-pyrrolo(2,3-d)pyrimidine, 3H-pyrrolo(2,3-d)pyrimidine, 1H-Pyrrolo[2,3-d]pyrimidine, Pyrrolo[2,3-d]pyrimidine, a 7-deazapurine, 1h-pyrrolo(2,3-d)pyrimidine, 7H-Pyrrolo[2,3d]pyrimidine, 7H-Pyrrolo[2,3-d]pyrimidine, AldrichCPR

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
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, 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 7-Deazapurine
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 7-Deazapurine

Which CAS number identifies 7-Deazapurine?
7-Deazapurine is registered under CAS 271-70-5. You may also see it listed as 3h-pyrrolo[2,3-d]pyrimidine, 7h-pyrrolo(2,3-d)pyrimidine, 3H-pyrrolo(2,3-d)pyrimidine. Our catalogue number for this item is ZX-036704.
What are the formula and molar mass of 7-Deazapurine?
For 7-Deazapurine, its formula is C6H5N3 and its molar mass is 119.12 g/mol. The systematic (IUPAC) name is 7H-pyrrolo[2,3-d]pyrimidine. InChIKey JJTNLWSCFYERCK-UHFFFAOYSA-N lets you match it in any structure database.
How is 7-Deazapurine used in pharmaceutical QC?
7-Deazapurine is a characterised reference material linked to Tofacitinib. 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 7-Deazapurine?
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 7-Deazapurine?
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 7-Deazapurine to my country?
Yes. Because 7-Deazapurine 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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