Isochroman-1-one
Also known as: 1-Isochromanone, 3,4-Dihydro-1H-2-benzopyran-1-one, 3,4-Dihydroisocoumarin, 1-oxo-isochroman, 1H-2-Benzopyran-1-one, 3,4-dihydro-, 3,4-Dihydro-1H-isochromen-1-one, Dihydroisocoumarin
Isochroman-1-one (CAS 4702-34-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H8O2 and a molecular weight of 148.159 g/mol. Key properties include a boiling point of 320.8±31.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 132.1±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4702-34-5
- Jingsj CID
- J-1315178-5
- Molecular Formula
- C9H8O2
- Molecular Weight
- 148.159 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 320.8±31.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 132.1±22.2 °C |
| Exact Mass | 148.052429 |
| PSA | 26.30000 |
| LogP | 1.33 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.562 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. 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 Isochroman-1-one?
The CAS number of Isochroman-1-one is 4702-34-5.
What are the molecular formula and molecular weight of Isochroman-1-one?
Isochroman-1-one has molecular formula C9H8O2 and molecular weight 148.159 g/mol.
What are the upstream and downstream products of Isochroman-1-one?
For Isochroman-1-one, Upstream Products: Isochroman, 2-Bromophenethyl alcohol, tert-Butyl hydroperoxide; Downstream Products: 2-Indanol, Isochroman, Methyl 2-(2-bromoethyl)benzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isochroman-1-one (CAS 4702-34-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315178-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.