3-Hydroxy-1H-pyrrol-2(5H)-one CAS 693826-68-5
| CAS No. | 693826-68-5 |
| Molecular Formula | C4H5NO2 |
| Molecular Weight | 99.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Hydroxy-1H-pyrrol-2(5H)-one (CAS 693826-68-5) is a high-purity analytical reference standard with the molecular formula C4H5NO2 and a molecular weight of 99.09 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 3-Hydroxy-1H-pyrrol-2(5H)-one is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 99.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Hydroxy-1H-pyrrol-2(5H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H5NO2 |
| Molecular Weight | 99.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 4-Hydroxy-1H-pyrrol-2(5H)-one (CAS 503-83-3)
- 5-Hydroxy-1H-pyrrol-3(2H)-one (CAS 79469-69-5)
- 3-Hydroxy-3-methylbutyronitrile (CAS 13635-04-6)
- 2-Hydroxy-3-methylbutanenitrile (CAS 15344-34-0)
- 3-Hydroxy-2,2-dimethylpropanenitrile (CAS 19295-57-9)
- 2-Hydroxy-2-methylbutanenitrile (CAS 4111-08-4)
- 3-Hydroxy-2-methylbutanenitrile (CAS 38046-46-7)
- 4-Hydroxy-3-methylbutanenitrile (CAS 64404-55-3)
Recommended Standards
- 3-hydrazinyl-4H-1,2,4-triazole (CAS 38767-33-8)
- 3-Methyl-1,2,4-oxadiazol-5-amine (CAS 3663-39-6)
- 3-Azidopropanal (CAS 58503-60-9)
- 3-Methyl-1,2-oxazol-5-ol (CAS 45469-93-0)
- 4-MethylÂisoxazole (CAS 6454-84-8)
- Tert-butyl 3-oxo-3H-spiro[furo[2,3-b]pyridine-2,4'-piperidine]-1'-carboxylate (CAS 2245085-03-2)
- 1-(4-Benzylpiperazin-1-yl)-3-hydroxy-2-phenylpropan-1-one (CAS 1313712-45-6)
- Trichloro-3-methaphos (CAS 2633-54-7)
- (R)-4-Methylcyclohex-2-en-1-one (CAS 75337-05-2)
- 1797891-14-5 3-Chloro-1-(4-pivaloyloxyphenyl)propan-1-one (CAS 1797891-14-5)
- Methyl 5-ethyl-4,6-dioxo-1,3a,4,5,6,6a-hexahydropyrrolo[3,4-c]pyrazole-3-carboxylate (CAS 345958-78-3)
- 1-Bromo-2-chloro-5-fluoro-4-(trifluoromethyl)benzene (CAS 1345471-24-0)
- cis-tert-Butyl 5-aminohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate (CAS 1417317-03-3)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com