Promazine EP Impurity A

Name: Promazine EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-033346

About Promazine EP Impurity A

Promazine EP Impurity A is a pharmacopeial impurity of Promazine carrying the CAS registry number 146-21-4. Its molecular formula is C17H20N2OS and its molecular weight is 300.4 g/mol. The IUPAC name is N,N-dimethyl-3-(5-oxophenothiazin-10-yl)propan-1-amine. Alternative names: Promazine Hydrochloride - Impurity A and Promazine 5-sulfoxide.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

This Promazine 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.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Related to Promazine

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

Promazine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Promazine EP Impurity A
Catalogue No.	VQ-033346
CAS Number	146-21-4
IUPAC name	N,N-dimethyl-3-(5-oxophenothiazin-10-yl)propan-1-amine
Molecular formula	C₁₇H₂₀N₂OS
Molecular weight	300.4 g/mol
Exact mass	300.1296
Grade	Reference Standard
HSN code	38229090
InChIKey	KSHDHDWHIWBNHA-UHFFFAOYSA-N
SMILES	CN(C)CCCN1C2=CC=CC=C2S(=O)C3=CC=CC=C31
PubChem CID	547559

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	0 / 3
TPSA	53.5 Å²
Synonyms	Promazine Hydrochloride - Impurity A, Promazine 5-sulfoxide, 10-(3-(dimethylamino)propyl)-10H-5$l^(4),10-phenothiazin-5-one, 10-[3-(dimethylamino)propyl]-10H-5$l^{4},10-phenothiazin-5-one, Promazine sulfoxide, Propazine sulfoxide, propazin sulfoxide, promazine 5-oxide, Promazine Sulphoxide, SKF 5418A, Phenothiazine, 10-[3-(dimethylamino)propyl]-, 5-oxide, 10-[3-(dimethylamino)propyl]-10H-phenothiazine 5-oxide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 Promazine EP Impurity A?

The CAS Registry Number of Promazine EP Impurity A is 146-21-4. It is also known as Promazine Hydrochloride - Impurity A, Promazine 5-sulfoxide, 10-(3-(dimethylamino)propyl)-10H-5$l^(4),10-phenothiazin-5-one.

What is the molecular formula and molecular weight of Promazine EP Impurity A?

Promazine EP Impurity A has the molecular formula C17H20N2OS and a molecular weight of 300.4 g/mol. Its IUPAC name is N,N-dimethyl-3-(5-oxophenothiazin-10-yl)propan-1-amine.

What is Promazine EP Impurity A used for?

Promazine EP Impurity A is supplied as a characterised reference material related to Promazine. 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 Promazine EP Impurity A can I order?

We supply Promazine EP Impurity A in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Promazine EP Impurity A?

Yes. Every lot of Promazine EP Impurity A 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 Promazine EP Impurity A be shipped internationally?

Yes. Promazine EP Impurity A 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.