Ensifentrine Impurity 3

Name: Ensifentrine Impurity 3
Brand: Vaqora Chemicals
SKU: VQ-004885

About Ensifentrine Impurity 3

Vaqora Chemicals supplies Ensifentrine Impurity 3, an impurity of Ensifentrine registered under CAS number 75535-96-5. The compound has the formula C14H13ClN2O3, corresponding to a molecular weight of 292.72 g/mol. The IUPAC name is 2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one. Alternative names: Ohtuvayre Impurity 6 and starbld0002193.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Ensifentrine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Ensifentrine Impurity 3 in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. Stock is available for quick dispatch.

Typical applications

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

Industries

Related to Ensifentrine

View every impurity, metabolite and intermediate we list for Ensifentrine.

Ensifentrine impurities

Specifications & identifiers

Chemical identifiers
Product name	Ensifentrine Impurity 3
Catalogue No.	VQ-004885
CAS Number	75535-96-5
IUPAC name	2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one
Molecular formula	C₁₄H₁₃ClN₂O₃
Molecular weight	292.72 g/mol
Exact mass	292.0615
Grade	Reference Standard
HSN code	38229090
InChIKey	BIJWXQNMLKVZJM-UHFFFAOYSA-N
SMILES	COC1=C(C=C2C(=C1)CCN3C2=CC(=NC3=O)Cl)OC
PubChem CID	4678720

Physical properties
Physical form	Solid
LogP (XLogP3)	2.1
H-bond donors / acceptors	0 / 3
TPSA	51.1 Å²
Synonyms	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, 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

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Ensifentrine Impurity 3?

The CAS Registry Number of Ensifentrine Impurity 3 is 75535-96-5. It is also known 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.

What is the molecular formula and molecular weight of Ensifentrine Impurity 3?

Ensifentrine Impurity 3 has the molecular formula C14H13ClN2O3 and a molecular weight of 292.72 g/mol. Its IUPAC name is 2-chloro-9,10-dimethoxy-6,7-dihydropyrimido[6,1-a]isoquinolin-4-one.

What is Ensifentrine Impurity 3 used for?

Ensifentrine Impurity 3 is supplied as a characterised reference material related to Ensifentrine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Ensifentrine Impurity 3 can I order?

We supply Ensifentrine Impurity 3 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ensifentrine Impurity 3?

Yes. Every lot of Ensifentrine Impurity 3 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Ensifentrine Impurity 3 be shipped internationally?

Yes. Ensifentrine Impurity 3 is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.