butynedioic acid CAS 142-45-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 142-45-0 |
| Molecular Formula | C4H2O4 |
| Molecular Weight | 114.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
butynedioic acid (CAS 142-45-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4H2O4. Molecular weight: 114.06 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H2O4 |
| Molecular Weight | 114.06 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related butynedioic Standards
- 2-Butynedioic acid, diethyl ester 762-21-0 Acetylenedicarboxylic acid, diethyl ester Bis-(Ethoxycarbonyl)acetylene Di-Ethyl acetylenedicarboxylate Diethyl acetylene dicarboxylate Diethyl acetylenedicarboxylate NSC-67975 NSC67975 WLN: 2OV1UU1VO2 (CAS 762-21-0)
- 2-Butynedioic acid di-tert-butyl ester 66086-33-7 Di-tert-butyl 2-butynedioate Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7)
- 2-Butynedioic acid monopotassium salt 928-04-1 Acetylenedicarboxylic acid monopotassium salt acetylenedicarboxylic monopotassium acetylenedicarboxylate monopotassium butynedioate monopotassiumsaltofacetylenedicarboxylicacid potassium acetylene dicarboxylate potassium hydrogen acetylenedicarboxylate timtec-bb sbb008993 u-4783 (CAS 928-04-1)
Recommended Standards
- 5-Oxo-4,5-dihydro-1,3,4-oxadiazole-2-carbaldehyde (CAS 1357567-93-1)
- 4-Nitrooxazole (CAS 170696-63-6)
- 5-Nitrooxazole (CAS 125533-83-7)
- 4-Methyl-2-((tetrahydro-2h-thiopyran-3-yl)amino)pentan-1-ol (CAS 1343171-53-8)
- 3-Methoxy-2-methylbenzoic Acid 2-(3-methoxy-5-methylbenzoyl)-2-(1,1-dimethylethyl)hydrazide (CAS 163336-71-8)
- 6-Fluorothiazolo[5,4-b]pyridin-2-amine (CAS 1440427-89-3)
- (S)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-([1,1'-biphenyl]-2-ylmethyl)propanoic acid (CAS 1260614-15-0)
- Iron(III) arsenide (CAS 12044-16-5)
- 1-Bromo-2-methyl-4,4,4-trifluorobutane (CAS 203302-90-3)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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