1,3-Dimethyl-2-pyrazolin-5-one (CAS 2749-59-9) — formula C5H8N2O, molecular weight 112.13; category organic chemicals.
1,3-Dimethyl-2-pyrazolin-5-one (CAS 2749-59-9) is a chemical raw material in the organic chemicals category. Its molecular formula C5H8N2O comprises 5 C, 8 H, 2 N, 1 O atoms. Its molecular weight is about 112.13. Reported physicochemical data: LogP about -0.3. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 2749-59-9 |
|---|---|
| Molecular Formula | C5H8N2O |
| Molecular Weight | 112.13 |
| LogP | -0.3 |
| Applications | Intermediate, U.S. Production: 2023: 250, 000 - <550, 000 lb, 2022: 250, 2021: 250 |
| Category | Organic Chemicals |
Documented applications: Intermediate, U.S. Production: 2023: 250, 000 - <550, 000 lb, 2022: 250, 2021: 250.
1,3-Dimethyl-2-pyrazolin-5-one is a carbon-based organic compound with CAS registry number 2749-59-9 and molecular formula C5H8N2O (molecular weight 112.13), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 2749-59-9
Its molecular formula C5H8N2O comprises 5 C, 8 H, 2 N, 1 O atoms.
Also known as: 1,3-Dimethyl-2-pyrazolin-5-one · 1,3-二甲基-2-吡唑啉-5-酮
Category: organic chemicals
The CAS registry number of 1,3-Dimethyl-2-pyrazolin-5-one is 2749-59-9.
Molecular formula C5H8N2O, molecular weight 112.13.
It is also registered under: 1,3-Dimethyl-2-pyrazolin-5-one, 1,3-二甲基-2-吡唑啉-5-酮.
Recorded applications: Intermediate, U.S. Production: 2023: 250, 000 - <550, 000 lb, 2022: 250, 2021: 250.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for 1,3-Dimethyl-2-pyrazolin-5-one (CAS 2749-59-9), compiled from public chemistry databases.
| CAS Registry Number | 2749-59-9 |
|---|---|
| PubChem CID | 17673 |
| Molecular formula | C5H8N2O |
| IUPAC name | 2,5-dimethyl-4H-pyrazol-3-one |
| UNII (FDA) | NS00028314 |
| Molecular Weight | 112.13 |
|---|---|
| XLogP3 | -0.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 112.063662883 |
| Monoisotopic Mass | 112.063662883 |
| Topological Polar Surface Area | 32.7 |
| Heavy Atom Count | 8 |
2749-59-9; 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-; 2,4-DIHYDRO-2,5-DIMETHYL-3H-PYRAZOL-3-ONE; DTXSID4074641; NSC 304; EINECS 220-389-2; RefChem:505774; DTXCID2037685; 220-389-2; 1,3-Dimethyl-5-pyrazolone; 1,3-dimethyl-1H-pyrazol-5(4H)-one; 2,5-dimethyl-4H-pyrazol-3-one; 2,5-Dimethyl-2,4-dihydro-3H-pyrazol-3-one; 1,3-dimethyl-4,5-dihydro-1H-pyrazol-5-one; 1,3-Dimethylpyrazol-5(4H)-one; 1,3-Dimethyl-5-pyrazolinone
| Reported hazard statements | H302 (76%), H315 (24%), H319 (100%), H341 (76%), H412 (98%) |
|---|
H302 (76%): Harmful if swallowed [Warning Acute toxicity, oral]
H315 (24%): Causes skin irritation [Warning Skin corrosion/irritation]
1,3-Dimethyl-2-pyrazolin-5-one · CAS 2749-59-9 · C5H8N2O. UNII NS00028314.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 1,3-二甲基-2-吡唑啉-5-酮