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API Impurities

Ensifentrine Impurity 3

Reference StandardIn stock

Order Ensifentrine Impurity 3 (CAS 75535-96-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Ensifentrine Impurity 3 chemical structure
CAS number75535-96-5
FormulaC14H13ClN2O3
Molar mass292.72 g/mol
Physical formSolid
HS code38229090
InChIKeyBIJWXQNMLKVZJM-UHFFFAOYSA-N
IUPAC name2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one

About Ensifentrine Impurity 3

Ensifentrine Impurity 3 belongs to the Ensifentrine reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 75535-96-5, formula C14H13ClN2O3 and molar mass 292.72 g/mol. It is handled as a solid.

Typical applications

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

Safe handling

Classified under GHS with signal word Warning and hazard statements H302, H319 and H335. Read the SDS before first use.

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. Every shipment includes 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 Ensifentrine

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

Ensifentrine standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Ensifentrine Impurity 3
Product nameEnsifentrine Impurity 3
Catalogue numberZX-004682
CAS number75535-96-5
IUPAC name2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one
Molecular formulaC14H13ClN2O3
Molar mass292.72 g/mol
Exact mass292.0615
GradeReference Standard
Physical formSolid
XLogP32.1
H-bond donors / acceptors0 / 3
Topological polar surface area51.1 Ų
HS code38229090
InChIKeyBIJWXQNMLKVZJM-UHFFFAOYSA-N
SMILESCOC1=C(C=C2C(=C1)CCN3C2=CC(=NC3=O)Cl)OC
PubChem CID4678720
Synonyms2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido[6,1-a]isoquinolin-4-one, 2-Chloro-9,10-dimethoxy-6,7-dihydro-4H-pyrimido[6,1-a]isoquinolin-4-one, 2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido(6,1-a)isoquinolin-4-one, 4H-Pyrimido[6,1-a]isoquinolin-4-one, 2-chloro-6,7-dihydro-9,10-dimethoxy-, 2-Chloro-9,10-dimethoxy-6,7-dihydro-4H-pyrimido(6,1-a)isoquinolin-4-one, Ohtuvayre Impurity 6, starbld0002193, 2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido-[6,1-a]isoquinolin-4-one, 2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido-[6,1-a]isoquinolin-4one, 2-Chloro-9,10-dimethoxy-6,7-dihydro4H-pyrimido[6,1-a]isoquinolin-4-one, 2chloro-9,10-dimethoxy-6,7-dihydro-4H-pyrimido[6,1-a]isoquinolin-4-one, 9,10-Dimethoxy-2-chloro-6,7-dihydro-4H-pyrimido(6,1-a) isoquinolin-4-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

Signal word Warning

  • H302Harmful if swallowed
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P304 + P340, P305 + P351 + P338, P319, P330, P337 + P317, 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 Ensifentrine Impurity 3
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

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

Questions about Ensifentrine Impurity 3

Which CAS number identifies Ensifentrine Impurity 3?
Ensifentrine Impurity 3 is registered under CAS 75535-96-5. You may also see it listed as 2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido[6,1-a]isoquinolin-4-one, 2-Chloro-9,10-dimethoxy-6,7-dihydro-4H-pyrimido[6,1-a]isoquinolin-4-one, 2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido(6,1-a)isoquinolin-4-one. Our catalogue number for this item is ZX-004682.
What are the formula and molar mass of Ensifentrine Impurity 3?
For Ensifentrine Impurity 3, its formula is C14H13ClN2O3 and its molar mass is 292.72 g/mol. The systematic (IUPAC) name is 2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one. InChIKey BIJWXQNMLKVZJM-UHFFFAOYSA-N lets you match it in any structure database.
How is Ensifentrine Impurity 3 used in pharmaceutical QC?
Ensifentrine Impurity 3 is a characterised reference material linked to Ensifentrine. 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 Ensifentrine Impurity 3?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Ensifentrine Impurity 3?
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 Ensifentrine Impurity 3 to my country?
Yes. Because Ensifentrine Impurity 3 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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