10H-pyrido[3,2-b][1,4]benzothiazine

Also known as: 1-Azaphenothiazine, 10H-pyrido(3,2-b)(1,4)benzothiazine, 4-Azaphenothiazine, 10H-benzo[b]pyrido[2,3-e][1,4]thiazine, 10H-benzo[e]pyrido[3,2-b][1,4]thiazine, NSC 277720, PYRIDO[3,2-B][1,4]BENZOTHIAZINE

10H-pyrido[3,2-b][1,4]benzothiazine (CAS 261-96-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C11H8N2S and a molecular weight of 200.260 g/mol. Key properties include a melting point of 112 °C, a boiling point of 402.1±14.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 197.0±20.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 261-96-1
Jingsj CID: J-1328880-7
Molecular Formula: C₁₁H₈N₂S
Molecular Weight: 200.260 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	112 °C
Boiling Point	402.1±14.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	197.0±20.1 °C
Exact Mass	200.040817
PSA	50.22000
LogP	2.80
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.684

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 10H-pyrido[3,2-b][1,4]benzothiazine?

The CAS number of 10H-pyrido[3,2-b][1,4]benzothiazine is 261-96-1.

What are the molecular formula and molecular weight of 10H-pyrido[3,2-b][1,4]benzothiazine?

10H-pyrido[3,2-b][1,4]benzothiazine has molecular formula C11H8N2S and molecular weight 200.260 g/mol.

What are the upstream and downstream products of 10H-pyrido[3,2-b][1,4]benzothiazine?

For 10H-pyrido[3,2-b][1,4]benzothiazine, Upstream Products: 2-Anilinopyridine, 2,3-Dibromopyridine, 2-Aminobenzothiazole; Downstream Products: Isothipendyl, Pipazethate, Prothipendyl.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "10H-pyrido[3,2-b][1,4]benzothiazine (CAS 261-96-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1328880-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.