N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-methylnitrous amide
- CAS
- 73829-38-6
- Formula
- C12H14N4O2
- MW
- 246.27 g/mol
ZX-022109
Pharmacopeial Impurities (EP / USP / BP)
Metamizole EP Impurity C
Reference StandardAvailable on request
Order Metamizole EP Impurity C (CAS 519-98-2) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.
CAS number519-98-2
FormulaC12H15N3O
Molar mass217.27 g/mol
Physical formSolid
HS code38229090
InChIKeyJILCEWWZTBBOFS-UHFFFAOYSA-N
IUPAC name1,5-dimethyl-4-(methylamino)-2-phenylpyrazol-3-one
About Metamizole EP Impurity C
Metamizole EP Impurity C is supplied by Zemixal as a characterised reference material for Metamizole analysis. For your records (Reference Standard), the material is defined by CAS 519-98-2, formula C12H15N3O and molar mass 217.27 g/mol. It is handled as a solid.
Typical applications
- Pharmacopeial method verification
- Impurity profiling
- QC release testing
- ANDA / DMF filings
Handling and storage
It carries the GHS signal word Warning (H302), so wear gloves and eye protection and work with good ventilation.
Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.
Reference standards for Metamizole
See every impurity, metabolite and related compound we list for this API.
Metamizole standardsTypical uses
- Pharmacopeial method verification
- Impurity profiling
- QC release testing
- ANDA / DMF filings
Applications
Grade guides
Specifications and identifiers
| Product name | Metamizole EP Impurity C |
|---|---|
| Catalogue number | ZX-022110 |
| CAS number | 519-98-2 |
| IUPAC name | 1,5-dimethyl-4-(methylamino)-2-phenylpyrazol-3-one |
| Molecular formula | C12H15N3O |
| Molar mass | 217.27 g/mol |
| Exact mass | 217.1215 |
| Grade | Reference Standard |
| Physical form | Solid |
| XLogP3 | 0.8 |
| H-bond donors / acceptors | 1 / 3 |
| Topological polar surface area | 35.6 Ų |
| HS code | 38229090 |
| InChIKey | JILCEWWZTBBOFS-UHFFFAOYSA-N |
| SMILES | CC1=C(C(=O)N(N1C)C2=CC=CC=C2)NC |
| PubChem CID | 10618 |
| Synonyms | 4-Methylamino Antipyrine, Metamizole Sodium - Impurity C (Freebase), Noramidopyrine, Noraminopyrine, 4-methylaminoantipyrine, 4-Methylaminophenazone, 4-(Methylamino)antipyrine, 1,5-Dimethyl-4-(methylamino)-2-phenyl-1,2-dihydro-3H-pyrazol-3-one, Methylaminoantipyrine, 4-Monomethylaminoantipyrine, Monomethylaminoantipyrine, 4-Monomethylaminophenazone |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H302Harmful if swallowed
Precautionary statements P264, P270, P301 + P317, P330, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Metamizole EP Impurity C
Which CAS number identifies Metamizole EP Impurity C?
Metamizole EP Impurity C is registered under CAS 519-98-2. You may also see it listed as 4-Methylamino Antipyrine, Metamizole Sodium - Impurity C (Freebase), Noramidopyrine. Our catalogue number for this item is ZX-022110.
What are the formula and molar mass of Metamizole EP Impurity C?
For Metamizole EP Impurity C, its formula is C12H15N3O and its molar mass is 217.27 g/mol. The systematic (IUPAC) name is 1,5-dimethyl-4-(methylamino)-2-phenylpyrazol-3-one. InChIKey JILCEWWZTBBOFS-UHFFFAOYSA-N lets you match it in any structure database.
How is Metamizole EP Impurity C used in pharmaceutical QC?
Metamizole EP Impurity C is a characterised reference material linked to Metamizole. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Metamizole EP Impurity C?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Metamizole EP Impurity C?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Metamizole EP Impurity C to my country?
Yes. Because Metamizole EP Impurity C is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
More Metamizole standards
More in Pharmacopeial Impurities (EP / USP / BP)
N-(5-Methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)formamide
- CAS
- 106236-80-0
- Formula
- C11H11N3O2
- MW
- 217.22 g/mol
ZX-025552
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