Methyl 4-hydroxy-2-butynoate CAS 31555-05-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 31555-05-2 |
| Molecular Formula | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Methyl 4-hydroxy-2-butynoate (CAS 31555-05-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C5H6O3. Molecular weight: 114.10 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
Related Methyl Standards
- 4-Hydroxy-3,4-dihydro-2H-pyran-2-one (CAS 112592-82-2)
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- (S)-5-Hydroxy-3-methylfuran-2(5H)-one (CAS 1932127-71-3)
- 2-Hydroxy-2-methylbut-3-ynoic acid (CAS 87295-89-4)
- 3-Hydroxy-4-methylfuran-2(5H)-one (CAS 22438-62-6)
- 3-Hydroxy-5-methyl-2(5H)-furanone (CAS 21053-73-6)
- 4-Hydroxy-2,3-dihydropyran-6-one (CAS 55100-07-7)
- 4-hydroxy-3-methyl-2,5-dihydrofuran-2-one (CAS 516-09-6)
Recommended Standards
- Methyl 2-amino-2-cyanoacetate (CAS 52486-70-1)
- Methyl 4-oxobut-2-enoate (CAS 7327-99-3)
- Maleamide (CAS 928-01-8)
- 4-Chloro-7-cyclohexyl-2-(methylthio)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidine (CAS 388572-67-6)
- N-[(3,4-Dichlorophenyl)methoxy]-2,5-bis(2,2,2-trifluoroethoxy)benzamide (CAS 320418-35-7)
- 2-Chloro-n-(diphenylmethyl)propanamide (CAS 94500-97-7)
- 3-(1-Cyclopropyl-2-hydroxyethyl)phenol (CAS 1896517-36-4)
- Dexchlorpheniramine EP Impurity B (CAS 32188-09-3)
- N-(4-(2-Methoxyphenoxy)but-2-yn-1-yl)-2-methylbenzamide (CAS 1421481-37-9)
- Cycloaspeptide A (CAS 109171-13-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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