1-Azaphenothiazine

Name: 1-Azaphenothiazine
Brand: Vaqora Chemicals
SKU: VQ-032652

About 1-Azaphenothiazine

Listed under CAS 261-96-1, 1-Azaphenothiazine is an API impurity reference standard available from Vaqora Chemicals. Its molecular formula is C11H8N2S and its molecular weight is 200.26 g/mol. Its systematic (IUPAC) name is 10H-pyrido[3,2-b][1,4]benzothiazine. Alternative names: azaphenothiazine and 10H-Benzo[b]pyrido[2,3-e][1,4]thiazine.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of the parent drug substance, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer 1-Azaphenothiazine in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product name	1-Azaphenothiazine
Catalogue No.	VQ-032652
CAS Number	261-96-1
IUPAC name	10H-pyrido[3,2-b][1,4]benzothiazine
Molecular formula	C₁₁H₈N₂S
Molecular weight	200.26 g/mol
Exact mass	200.0408
Grade	Reference Standard
HSN code	38229090
InChIKey	UKDZROJJLPDLDO-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)NC3=C(S2)C=CC=N3
PubChem CID	67496

Physical properties
Physical form	Solid
LogP (XLogP3)	2.9
H-bond donors / acceptors	1 / 3
TPSA	50.2 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, 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 1-Azaphenothiazine?

The CAS Registry Number of 1-Azaphenothiazine is 261-96-1. It is also known as azaphenothiazine, 10H-Benzo[b]pyrido[2,3-e][1,4]thiazine, 10H-Pyrido(3,2-b)(1,4)benzothiazine.

What is the molecular formula and molecular weight of 1-Azaphenothiazine?

1-Azaphenothiazine has the molecular formula C11H8N2S and a molecular weight of 200.26 g/mol. Its IUPAC name is 10H-pyrido[3,2-b][1,4]benzothiazine.

Which grade and pack sizes of 1-Azaphenothiazine can I order?

We supply 1-Azaphenothiazine 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 1-Azaphenothiazine?

Yes. Every lot of 1-Azaphenothiazine 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 1-Azaphenothiazine be shipped internationally?

Yes. 1-Azaphenothiazine 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.