1-Phenyl-3-methyl-5-pyrazolone (PMP) CAS 89-25-8 | Dye Intermediates
1-Phenyl-3-methyl-5-pyrazolone (CAS 89-25-8, EINECS 201-891-0, molecular formula C10H10N2O, molecular weight 174.20) is a dye intermediate product. Pharmaceutical intermediate used in the synthesis of pyrazolone antipyretic analgesics such as analgin and aminopyrine; in the dye industry for pyrazolone azo dyes; also used as an analytical reagent and organic synthesis building block.
I. Basic Product Information
| Chinese Name | 1-苯基-3-甲基-5-吡唑啉酮 |
| English Name | 1-Phenyl-3-methyl-5-pyrazolone |
| Aliases / Synonyms | PMP; 1-Phenyl-3-methyl-5-pyrazolone; Edaravone intermediate |
| IUPAC Name | 5-methyl-2-phenyl-4H-pyrazol-3-one |
| CAS Registry No. | 89-25-8 |
| EINECS No. | 201-891-0 |
| Molecular Formula | C10H10N2O |
| Molecular Weight | 174.20 |
| Suggested HS Code | 2907.29 (polyphenols) / 2922.29 (oxygenated amino compounds) |
| SMILES | CC1=NN(C(=O)C1)C2=CC=CC=C2 |
| InChIKey | QELUYTUMUWHWMC-UHFFFAOYSA-N |
II. Technical Specifications & Supply Information
| Appearance | White to light yellow crystalline powder |
| Assay / Purity | ≥99.0%（HPLC） |
| Grade | Industrial / Pharmaceutical Grade |
| Packing | 25 kg fiber drum; woven bag |
| Standard | Enterprise standard / national standard (executed per batch COA) |
| Supply Capacity | Standard grades supplied from stock; bulk customization and long-term agreement supply supported |
| Documents Provided | COA and MSDS provided with each shipment; third-party SGS testing available for bulk orders |
| Storage Conditions | Store sealed, protected from light, in a dry and ventilated place, away from fire, heat sources and strong oxidizers |
III. Applications
Pharmaceutical intermediate used in the synthesis of pyrazolone antipyretic analgesics such as analgin and aminopyrine; in the dye industry for pyrazolone azo dyes; also used as an analytical reagent and organic synthesis building block.
IV. Quality & Supply Assurance
1. Stable batch-to-batch quality, with batch-by-batch inspection before shipment; a COA is provided with each delivery for full traceability;
2. Standard grades held in stock for fast delivery; bulk custom packing and long-term agreement supply supported;
3. Samples available on request, with third-party testing (e.g., SGS) to support incoming-material verification;
4. Our product line covers dye, pharmaceutical, agrochemical and organic pigment intermediates — a one-stop source for multi-category raw materials.
V. Frequently Asked Questions (FAQ)
Q: What are the CAS number and molecular formula of 1-Phenyl-3-methyl-5-pyrazolone?
A: 1-Phenyl-3-methyl-5-pyrazolone has CAS registry number 89-25-8, molecular formula C10H10N2O, molecular weight 174.20 and EINECS number 201-891-0.
Q: What are the main uses and applications of 1-Phenyl-3-methyl-5-pyrazolone?
A: Pharmaceutical intermediate used in the synthesis of pyrazolone antipyretic analgesics such as analgin and aminopyrine; in the dye industry for pyrazolone azo dyes; also used as an analytical reagent and organic synthesis building block.
Q: What are the standard purity and grade of 1-Phenyl-3-methyl-5-pyrazolone?
A: Standard supply purity ≥99.0% (HPLC), grade Industrial / Pharmaceutical Grade; custom assay and special specifications available on request — exact figures are per the batch COA.
Q: What are the packing specifications and minimum order quantity (MOQ) of 1-Phenyl-3-methyl-5-pyrazolone?
A: Standard packing: 25 kg fiber drum; woven bag. Samples available on request and custom packing supported; bulk orders can be delivered in batches per agreement.
Q: Can you provide COA, MSDS and other quality documents?
A: Pharmaceutical intermediate used in the synthesis of pyrazolone antipyretic analgesics such as analgin and aminopyrine; in the dye industry for pyrazolone azo dyes; also used as an analytical reagent and organic synthesis building block.
Q: How should 1-Phenyl-3-methyl-5-pyrazolone be stored and transported?
A: Pharmaceutical intermediate used in the synthesis of pyrazolone antipyretic analgesics such as analgin and aminopyrine; in the dye industry for pyrazolone azo dyes; also used as an analytical reagent and organic synthesis building block.
VI. Keywords
1-Phenyl-3-methyl-5-pyrazolone, PMP, 1-Phenyl-3-methyl-5-pyrazolone, Edaravone intermediate, 89-25-8, Dye Intermediates
关键字： 1-Phenyl-3-methyl-5-pyrazolone;PMP;89-25-8;201-891-0;Dye Intermediates