5-Hydroxy-4-(hydroxymethylene)pyrrolidine-2,3-dione CAS 475502-74-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 475502-74-0 |
| Molecular Formula | C5H5NO4 |
| Molecular Weight | 143.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Hydroxy-4-(hydroxymethylene)pyrrolidine-2,3-dione (CAS 475502-74-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5NO4. Molecular weight: 143.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5NO4 |
| Molecular Weight | 143.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
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- 1-Hydroxy-2,5-dioxopyrrolidine-3-carbaldehyde (CAS 39508-63-9)
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Recommended Standards
- 5-Methoxy-4-nitro-1H-imidazole (CAS 68019-78-3)
- 5-Amino-N-hydroxy-1H-1,2,4-triazole-3-carboxamide (CAS 199292-01-8)
- 5-Methoxyisoxazole-4-carboxylic acid (CAS 886363-65-1)
- 2-(1-Azepanyl)-N-methylethanamine (CAS 118808-13-2)
- 5-Bromoimidazo[1,2-a]pyrazine-2-carboxylic acid (CAS 2386295-35-6)
- 3-tert-Butyl-5-(4-fluoropyrrolidin-2-yl)-1,2,4-oxadiazole hydrochloride (CAS 2097936-78-0)
- 3-Benzyl-3,8-diazabicyclo[3.2.1]octane Dihydrochloride (CAS 93428-54-7)
- 5-Iodo-N-(3-methoxypropyl)-N-methylthiophene-3-carboxamide (CAS 1333723-84-4)
- tert-Butyl N-[(2z)-2-(hydroxyimino)-2-(4-methylphenyl)ethyl]carbamate (CAS 912762-60-8)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
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