1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one (CAS 90-31-3) — formula C10H9ClN2O, molecular weight 208.64; category organic chemicals.
1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one (CAS 90-31-3) is a chemical raw material in the organic chemicals category. Its molecular formula C10H9ClN2O comprises 10 C, 9 H, 1 Cl, 2 N, 1 O atoms. Its molecular weight is about 208.64. Reported physicochemical data: LogP about 1.9. 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 | 90-31-3 |
|---|---|
| Molecular Formula | C10H9ClN2O |
| Molecular Weight | 208.64 |
| LogP | 1.9 |
| Applications | 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2, 4-dihydro-5-methyl-: ACTIVE |
| Category | Organic Chemicals |
Documented applications: 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2, 4-dihydro-5-methyl-: ACTIVE.
1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one is a carbon-based organic compound with CAS registry number 90-31-3 and molecular formula C10H9ClN2O (molecular weight 208.64), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 90-31-3
Its molecular formula C10H9ClN2O comprises 10 C, 9 H, 1 Cl, 2 N, 1 O atoms.
Also known as: 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one · 1-(3-氯苯基)-3-甲基-2-吡唑啉-5-酮
Category: organic chemicals
The CAS registry number of 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one is 90-31-3.
Molecular formula C10H9ClN2O, molecular weight 208.64.
It is also registered under: 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one, 1-(3-氯苯基)-3-甲基-2-吡唑啉-5-酮.
Recorded applications: 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2, 4-dihydro-5-methyl-: ACTIVE.
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-Chlorophenyl)-3-methyl-2-pyrazolin-5-one (CAS 90-31-3), compiled from public chemistry databases.
| CAS Registry Number | 90-31-3 |
|---|---|
| PubChem CID | 66656 |
| Molecular formula | C10H9ClN2O |
| IUPAC name | 2-(3-chlorophenyl)-5-methyl-4H-pyrazol-3-one |
| UNII (FDA) | 76806T6L7I |
| Molecular Weight | 208.64 |
|---|---|
| XLogP3 | 1.9 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 208.0403406 |
| Monoisotopic Mass | 208.0403406 |
| Topological Polar Surface Area | 32.7 |
| Heavy Atom Count | 14 |
90-31-3; 1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one; 2-Pyrazolin-5-one, 1-(m-chlorophenyl)-3-methyl-; 1-(3-CHLOROPHENYL)-3-METHYL-5-PYRAZOLONE; 2-(3-Chlorophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one; EINECS 201-984-6; 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl-; NSC 166399; EC 201-984-6; 1-(m-CHLOROPHENYL)-3-METHYL-5-PYRAZOLONE; 3-Methyl-1-(3'-chlorophenyl)-2-pyrazolin-5-one; 76806T6L7I; NSC-166399; RefChem:503425; 2-Pyrazolin-5-one, 1-(m-chlorophenyl)-3-methyl-(8CI); 201-984-6
| GHS notification summary | 0.1% (3 / 2117) |
|---|
| GHS notification summary | 0.1% (3 / 2117) |
|---|---|
| Reported hazard statements | H411 (99.8%) |
This chemical does not meet GHS hazard criteria for 0.1% (3 of 2117) of reports.
H411 (99.8%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
1-(3-Chlorophenyl)-3-methyl-2-pyrazolin-5-one · CAS 90-31-3 · C10H9ClN2O. UNII 76806T6L7I.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 1-(3-氯苯基)-3-甲基-2-吡唑啉-5-酮