Precocene II
Also known as: 2H-1-Benzopyran, 6,7-dimethoxy-2,2-dimethyl-, 6,7-Dimethoxy-2,2-dimethyl-2H-1-benzopyran, 6,7-Dimethoxy-2,2-dimethyl-2H-benzopyran, 6,7-Dimethoxy-2,2-dimethyl-2H-chromene, Ageratochromene, Precocen 2, Precocene 2, Precocene II
Precocene II (CAS 644-06-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H16O3 and a molecular weight of 220.26 g/mol. Key properties include a melting point of 47.5ºC, a boiling point of 300.4±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 100.0±25.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 644-06-4
- Jingsj CID
- J-27898-8
- Molecular Formula
- C13H16O3
- Molecular Weight
- 220.26 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 47.5ºC |
|---|---|
| Boiling Point | 300.4±42.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 100.0±25.2 °C |
| Exact Mass | 220.109940 |
| PSA | 27.69000 |
| LogP | 3.38 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.514 |
Activity & Biological Data
| Additional Information | [1]. Ohta T, et al. Radiosynthesis and metabolism of the insect antijuvenile hormone, precocene II. J Agric Food Chem. 1977;25(3):478-481. |
|---|
Customs & Trade Information
| HS Code | 2909199090 |
|---|---|
| Summary | 2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Precocene II?
The CAS number of Precocene II is 644-06-4.
What are the molecular formula and molecular weight of Precocene II?
Precocene II has molecular formula C13H16O3 and molecular weight 220.26 g/mol.
What are the upstream and downstream products of Precocene II?
For Precocene II, Upstream Products: 3,4-Dimethoxyphenol, 3-Methyl-2-butenal, iodomethane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Precocene II (CAS 644-06-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27898-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.