Skip to main content

Temozolomide acid

Also known as: Temozolomide-8-carboxylic acid, 3,4-Dihydro-3-methyl-4-oxoimidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3-Methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxylic acid, 3-Methyl-4-oxo-8-imidazolo[5,1-d][1,2,3,5]tetrazinecarboxylic acid, Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3,4-dihydro-3-methyl-4-oxo-, Temozolomide Impurity 1, Temozolomide Impurity C, TMZA

Temozolomide acid (CAS 113942-30-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5N5O3 and a molecular weight of 195.136 g/mol. Key properties include a melting point of 177 ºC (decomp), a boiling point of 487.7±37.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 248.7±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
113942-30-6
Jingsj CID
J-1985010-3
Molecular Formula
C6H5N5O3
Molecular Weight
195.136 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point177 ºC (decomp)
Boiling Point487.7±37.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point248.7±26.5 °C
Exact Mass195.039246
PSA102.38000
LogP-1.46
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.860
Storage Conditions2-8°C
Additional PropertySlightly soluble (4.3 g/L) (25 ºC)

Activity & Biological Data

Additional Information[1]. Helal DO, et al. A natural protein based platform for the delivery of Temozolomide acid to glioma cells. Eur J Pharm Biopharm. 2021 Dec;169:297-308.

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 Temozolomide acid?

The CAS number of Temozolomide acid is 113942-30-6.

What are the molecular formula and molecular weight of Temozolomide acid?

Temozolomide acid has molecular formula C6H5N5O3 and molecular weight 195.136 g/mol.

What are the upstream and downstream products of Temozolomide acid?

For Temozolomide acid, Upstream Products: Temozolomide.

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

Last updated:

How to cite: Jingsj. "Temozolomide acid (CAS 113942-30-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1985010-3 (accessed 2026-11-09).

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