![Molecular structure of 1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one (CAS 30957-66-5)](/images/chem_structures_svg/463/30957-66-5.svg)
1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one
Also known as: 4-(Salicylideneamino)antipyrine, Salicylaldimine antipyrine
1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one (CAS 30957-66-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H17N3O2 and a molecular weight of 307.34600 g/mol. Key properties include a boiling point of 464.4ºC at 760mmHg, a density of 1.29g/cm3 and a flash point of 234.6ºC. It is listed by 3 suppliers, 2 of which publish reference prices, from 19.00 to 372.00 CNY. Record last updated Nov 2, 2026.
- CAS No.
- 30957-66-5
- Jingsj CID
- J-1134038-0
- Molecular Formula
- C18H17N3O2
- Molecular Weight
- 307.34600 g/mol
- Category
- Organic Compounds
- Last updated
- 11/2/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 100mg | ¥1,900.00 | $2.84 /mgBest ¥19.00/mg CNY | CN China MOQ 100mg | |
Made to Order | 99% 50g | ¥1,000.00 | $2.99 /g ¥20.00/g CNY | CN China MOQ 50g | |
Made to Order | 99% 25mg | ¥600.00 | $3.59 /mg ¥24.00/mg CNY | CN China MOQ 25mg |
Physicochemical Properties
| Boiling Point | 464.4ºC at 760mmHg |
|---|---|
| Density | 1.29g/cm3 |
| Flash Point | 234.6ºC |
| Exact Mass | 307.13200 |
| PSA | 56.03000 |
| LogP | 2.54830 |
| InChIKey | DUFMMDXSTAJOPL-UHFFFAOYSA-N |
| SMILES | Cc1c(N=Cc2ccccc2O)c(=O)n(-c2ccccc2)n1C |
| Refractive Index | 1.674 |
Customs & Trade Information
| HS Code | 2933199090 |
|---|---|
| Summary | 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. 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 1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one?
The CAS number of 1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one is 30957-66-5.
What are the molecular formula and molecular weight of 1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one?
1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one has molecular formula C18H17N3O2 and molecular weight 307.34600 g/mol.
Which suppliers offer 1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one?
3 supplier(s) listed; reference unit price ¥19.00–372.00 /mg.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,5-dimethyl-4-[[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]-2-phenylpyrazol-3-one (CAS 30957-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1134038-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.