ChemicalBook >> CAS DataBase List >>1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
- CAS No.
- 519-98-2
- Chemical Name:
- 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
- Synonyms
- noramidopyrine;N-Methy;Noraminopyrine;Methylaminophenazone;Methylaminoantipyrine;Metamizole Impurity C;N-Methylaminophenazone;4-Methylaminophenazone;Monomethylaminoantipyrine;4-(Methylamino)-antipyrine
- CBNumber:
- CB5924116
- Molecular Formula:
- C12H15N3O
- Molecular Weight:
- 217.27
- MDL Number:
- MFCD00447796
- MOL File:
- 519-98-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 01:15:02
| Product description | Number | Pack Size | Price |
| 4-Methylamino Antipyrine >95%(HPLC) | TRC-M285600-10MG | 10mg | $259 |
| 4-Methylamino Antipyrine >95%(HPLC) | TRC-M285600-100MG | 100mg | $1984 |
| 4-Methylamino Antipyrine ≥95%% | 016478 | 10mg | $475 |
| 4-Methylamino antipyrine ≥98% | CS-0113885 | 5mg | $38 |
| 4-Methylamino antipyrine ≥98% | CS-0113885 | 10mg | $54 |
| More product size | |||
| Melting point | 50-53°C |
|---|---|
| Boiling point | 324.5±45.0 °C(Predicted) |
| Density | 1.20±0.1 g/cm3 (20 ºC 760 Torr) |
| storage temp. | -20°C Freezer |
| solubility | Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | 4.76±0.20(Predicted) |
| color | Pale Yellow to Brown |
| EWG's Food Scores | 1 |
| FDA UNII | NER31DE951 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P330-P501 |
| HazardClass | IRRITANT |
| Toxicity | LD50 oral in mouse: 7gm/kg |
| REACH Registrations | Active |
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one price More Price(40)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TRC | TRC-M285600-10MG | 4-Methylamino Antipyrine >95%(HPLC) | 519-98-2 | 10mg | $259 | 2026-06-03 | Buy |
| TRC | TRC-M285600-100MG | 4-Methylamino Antipyrine >95%(HPLC) | 519-98-2 | 100mg | $1984 | 2026-06-03 | Buy |
| Usbiological | 016478 | 4-Methylamino Antipyrine ≥95%% | 519-98-2 | 10mg | $475 | 2026-06-03 | Buy |
| ChemScene | CS-0113885 | 4-Methylamino antipyrine ≥98% | 519-98-2 | 5mg | $38 | 2026-06-04 | Buy |
| ChemScene | CS-0113885 | 4-Methylamino antipyrine ≥98% | 519-98-2 | 10mg | $54 | 2026-06-04 | Buy |
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one Chemical Properties,Uses,Production
Chemical Properties
Pale Orange Low Melting Waxy Solid
Uses
A metabolite of Dipyrone, a nonsteroidal anti-inflammatory drug.
Definition
ChEBI: A member of the class of pyrazoles that is antipyrine substituted at C-4 by a methylamino group. It is a metabolite of aminopyrine and of metamizole.
in vivo
The aim of this study is to assess the pharmacokinetics of its active metabolites 4-Methylamino antipyrine in male piglets after a single intramuscular injection of Metamizole. Eight healthy male piglets are administered Metamizole (100 mg/kg) intramuscularly. 4-Methylamino antipyrine plasma concentrations are quantitatively detectable from 0.25 to 48 h. The average maximum concentrations of 4-Methylamino antipyrine is of 47.59 mg/mL. The average half-lives is 8.57 h for 4-Methylamino antipyrine[1].
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 130)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| BOC Sciences | +1-631-485-4226 | inquiry@bocsci.com | United States | 19936 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32466 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-86-17392712697 +8617792793228 | 1069@dideu.com | China | 8614 | 58 |
| Henan Aochuang Chemical Co.,Ltd. | +86-0371-63689365 +8618638391208 | sales@aochuangchem.com | China | 9333 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 39040 | 58 |
View Lastest Price from 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-11 | 4-Methylamino antipyrine
519-98-2
|
$39.00-126.00 | 99.87% | 10g | TargetMol Chemicals Inc. | ||
 |
2026-05-11 | 4-Methylamino antipyrine
519-98-2
|
$39.00-126.00 | 99.87% | 10g | TargetMol Chemicals Inc. | ||
 |
2025-12-01 | 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
519-98-2
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd |
-
- 4-Methylamino antipyrine
519-98-2
- $39.00-126.00
- 99.87%
- TargetMol Chemicals Inc.
-
- 4-Methylamino antipyrine
519-98-2
- $39.00-126.00
- 99.87%
- TargetMol Chemicals Inc.
-
- 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
519-98-2
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
519-98-2(1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one )Related Search:
4-ACETAMIDOANTIPYRINE
AMINOPROPYLON
Aminopyrine
Isopyrin hydrochloride
Metamizole Sodium Monohydrate
Antipyrine
(((2,3-DIMETHYL-5-OXO-1-PHENYL-3-PYRAZOLIN-4-YL)AMINO)METHYLENE)METHANE-1,1-DICARBONITRILE
[(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino]methanesulphonic acid
4-(DIMETHYL-13C 2-AMINO)ANTIPYRINE
4,4'-[methylenebis(methylimino)]bis[1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one]
N-(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)formamide
2-CHLORO-N-(1,5-DIMETHYL-3-OXO-2-PHENYL-2,3-DIHYDRO-1H-PYRAZOL-4-YL)ACETAMIDE
ETHYL N-(4-ANTIPYRYL)CARBAMATE
3-((2,3-DIMETHYL-5-OXO-1-PHENYL(3-PYRAZOLIN-4-YL))AMINO)-2-((4-METHYLPHENYL)SULFONYL)PROP-2-ENENITRILE
1-(2,3-DIMETHYL-5-OXO-1-PHENYL(3-PYRAZOLIN-4-YL)-3-(3-(TRIFLUOROMETHYL)PHENYL)UREA
1of4
4-(Methylamino)-antipyrine
2,3-Dimethyl-4-methylamino-1-phenyl-3-pyrazolin-5-one
Methylaminoantipyrine
Monomethylaminoantipyrine
Noraminopyrine
1,5-Dimethyl-4-(methylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one hydrochloride
N-Methylaminophenazone
MetaMizole IMpurity C (4-MethylaMinoantipyrine)
3H-pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-4-(methylamino)
1,5-dimethyl-4-(methylamino)-2-phenyl-pyrazol-3-one
1,5-dimethyl-4-(methylamino)-2-phenylpyrazol-3-one
4-(N-Methyl)-aminoantipyrine
1,5-dimethyl-4-(methylamino)-2-phenyl-1,2-dihydropyrazol-3-one
1,5-dimethyl-4-methylamino-2-phenyl-3-pyrazolone
3H-Pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-
4-Methylaminophenazone
4-Monomethylaminoantipyrine
4-Monomethylaminophenazone
ANTIPYRINE, 4-(METHYLAMINO)-
Methylaminophenazone
1,2-dihydro-1,5-dimethyl-4-(methylamino)-2-phenyl-3H-pyrazol-3-one
2-(1-cyclohexa-2,4-dienyl)-1,5-dimethyl-4-(methylamino)-3-pyrazolone
Metamizole Sodium Impurity 3（Minocycline EP Impurity C）
Metamizole Sodium Impurity 3（Metamizole Sodium EP Impurity C）
Metamizole Impurity C
Metamizole sodium EP Impurity C
Metamizole Impurity CQ: What is
Metamizole Impurity C Q: What is the CAS Number of
Metamizole Impurity C Q: What is the storage condition of
Metamizole Impurity C Q: What are the applications of
Metamizole Impurity C
Metamizole EP Impurity C
1,5-dimethyl-4-(methylamino)-2-phenyl-2,3-dihydro-1H-pyrazol-
3-one
4-Methylamino antipyrine, 10 mM in DMSO
1,5-dimethyl-4-methylamino-2-phenylpyrazolin-3-one
4-(Methylamino)antipyrine 100 μg/mL in Acetonitrile
4-Methylamino Antipyrine (Standard)
N-Methy
noramidopyrine
519-98-2
21727
Aromatics
Heterocycles
Intermediates & Fine Chemicals
Metabolites & Impurities
Pharmaceuticals
