![Molecular structure of 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one (CAS 5203-98-5)](/images/chem_structures_svg/028/5203-98-5.svg)
3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one
Also known as: 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one, 3,4-dimethyl-2H-pyrano[2,3-c]pyrazol-6-one, 3,4-dimethylpyrano[2,3-c]pyrazol-6(1H)-one, 3,4-dimethylpyrano[2,3-c]pyrazol-6(2H)-one, 3,4-Dimethyl-1H-pyrano[2,3-c]pyrazol-6-one, Pyrano[2,3-c]pyrazol-6(1H)-one, 3,4-dimethyl-, XC 386, Bio-0426
3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one (CAS 5203-98-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8N2O2 and a molecular weight of 164.16100 g/mol. Key properties include a melting point of 251ºC, a boiling point of 414.4ºC at 760mmHg, a density of 1.335 g/cm3 and a flash point of 204.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5203-98-5
- Jingsj CID
- J-849454-0
- Molecular Formula
- C8H8N2O2
- Molecular Weight
- 164.16100 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 251ºC |
|---|---|
| Boiling Point | 414.4ºC at 760mmHg |
| Density | 1.335 g/cm3 |
| Flash Point | 204.4ºC |
| Exact Mass | 164.05900 |
| PSA | 58.89000 |
| LogP | 1.13290 |
| Refractive Index | 1.596 |
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 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one?
The CAS number of 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one is 5203-98-5.
What are the molecular formula and molecular weight of 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one?
3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one has molecular formula C8H8N2O2 and molecular weight 164.16100 g/mol.
What are the upstream and downstream products of 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one?
For 3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one, Upstream Products: Ethyl acetoacetate, 3-Methyl-5-pyrazolone, Benzohydrazide; Downstream Products: 3-Methyl-5-pyrazolone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-dimethyl-1,6-dihydropyrano[2,3-c]pyrazol-6-one (CAS 5203-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-849454-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.