![Molecular structure of 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one (CAS 304876-29-7)](/images/chem_structures_svg/222/304876-29-7.svg)
2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one
Also known as: 2',3',5',6'-Tetrahydrospiro[indoline-3,4'-pyran]-2-one, 1H-Spiro[indole-3,4'-oxane]-2-one, Spiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one, 2',3',5',6'-tetrahydro-, 2',3',5',6'-tetrahydrospiro[indole-3,4'-pyran]-2(1H)-one, 2',3',5',6'-tetrahydrospiro[indole-3,4'-pyran]-2-one
2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one (CAS 304876-29-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H13NO2 and a molecular weight of 203.237 g/mol. Key properties include a boiling point of 409.7±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 201.6±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 304876-29-7
- Jingsj CID
- J-977136-2
- Molecular Formula
- C12H13NO2
- Molecular Weight
- 203.237 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 409.7±45.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 201.6±28.7 °C |
| Exact Mass | 203.094635 |
| PSA | 41.82000 |
| LogP | 1.52 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.606 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one?
The CAS number of 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one is 304876-29-7.
What are the molecular formula and molecular weight of 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one?
2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one has molecular formula C12H13NO2 and molecular weight 203.237 g/mol.
What are the upstream and downstream products of 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one?
For 2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one, Upstream Products: Oxindole, 2-Iodoethyl ether, Bis(2-bromoethyl) ether.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2',3',5',6'-Tetrahydrospiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one (CAS 304876-29-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-977136-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.