Pemirolast potassium

吡嘧司特钾

Also known as: Pemirolast potassium hydrate, 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one potassium salt, 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one Potassium Salt Hydrate, Potassium 5-(9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)tetrazol-1-ide, 10-methyl-4-(2H-tetrazol-5-yl)-2,6-diazabicyclo[4.4.0]deca-1,3,7,9-tetraen-5-one potassium, BMY-26517, BMY 26517, TWT-8152, TWT 8152, DE-068, Alegysal, Alamast, Pemirolast (potassium), bmy26517, tbx

Pemirolast potassium (CAS 100299-08-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H7KN6O and a molecular weight of 266.301 g/mol. It is also known as Pemirolast potassium hydrate, 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one potassium salt and 9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one Potassium Salt Hydrate. Key properties include a melting point of 310-311ºC (dec.), a boiling point of 454.8ºC at 760mmHg and a flash point of 228.9ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
100299-08-9
Jingsj CID
J-1984159-7
Molecular Formula
C10H7KN6O
Chinese Name
吡嘧司特钾
Molecular Weight
266.301 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point310-311ºC (dec.)
Boiling Point454.8ºC at 760mmHg
Flash Point228.9ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Pemirolast potassium?

The CAS number of Pemirolast potassium is 100299-08-9.

What are the molecular formula and molecular weight of Pemirolast potassium?

Pemirolast potassium has molecular formula C10H7KN6O and molecular weight 266.301 g/mol.

Is Pemirolast potassium hazardous?

Pemirolast potassium has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Pemirolast potassium (CAS 100299-08-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1984159-7 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.