Obtusin
决明素
Also known as: 1,7-Dihydroxy-2,3,8-trimethoxy-6-methylanthracene-9,10-dione, 1,7-Dihydroxy-2,3,8-trimethoxy-6-methyl-9,10-anthraquinone, 1,7-Dihydroxy-2,3,8-trimethoxy-6-methyl-9,10-anthracenedione
Obtusin (CAS 70588-05-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H16O7 and a molecular weight of 344.315 g/mol. It is also known as 1,7-Dihydroxy-2,3,8-trimethoxy-6-methylanthracene-9,10-dione, 1,7-Dihydroxy-2,3,8-trimethoxy-6-methyl-9,10-anthraquinone and 1,7-Dihydroxy-2,3,8-trimethoxy-6-methyl-9,10-anthracenedione. Key properties include a boiling point of 614.9±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 227.0±25.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 70588-05-5
- Jingsj CID
- J-1971140-3
- Molecular Formula
- C18H16O7
- Chinese Name
- 决明素
- Molecular Weight
- 344.315 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 614.9±55.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 227.0±25.0 °C |
Frequently Asked Questions
What is the CAS number of Obtusin?
The CAS number of Obtusin is 70588-05-5.
What are the molecular formula and molecular weight of Obtusin?
Obtusin has molecular formula C18H16O7 and molecular weight 344.315 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Obtusin (CAS 70588-05-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1971140-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.