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
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 762-21-0 |
| Molecular Formula | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 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) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C8H10O4. Molecular weight: 170.16 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Butynedioic Standards
- butynedioic acid (CAS 142-45-0)
- 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
- 5617-70-9 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione C1334 Cyclopropane-1,1-dicarboxylic Acid cycl-Isopropylidene Ester cycl-Isopropylidene Cyclopropane-1,1-dicarboxylate (CAS 5617-70-9)
- 3994AJ 95124-07-5 C8H10O4 Dimethyl propargylmalonate (CAS 95124-07-5)
- 37418-88-5 3-Hydroxyphthalic anhydride Phthalic anhydride, 3-hydroxy- 5-18-03-00184 (Beilstein Handbook Reference) BRN 0135783 3-Hydroxyphthalic acid anhydride 1,3-Isobenzofurandione, 4-hydroxy- NSC 80858 (CAS 37418-88-5)
- 2,3,5-Trichloro-6-methoxypyridine (CAS 31557-34-3)
- 2-(4-Chloro-1h-pyrazol-1-yl)ethan-1-ol (CAS 1003992-83-3)
- 2-{[(9H-Fluoren-9-ylmethoxy)carbonyl]amino}-3-(4-fluorophenyl)propanoic acid 264276-42-8 8754AD C24H20FNO4 (CAS 264276-42-8)
- 2-(4-(Isopropylthio)phenyl)-N-(pyrazolo[1,5-a]pyridin-3-ylmethyl)acetamide (CAS 1396707-47-3)
- 3-Fluoro-2-(2,2,2-trifluoroethyl)benzaldehyde (CAS 2755372-69-9)
- Simvastatin EP Impurity H (CAS 79952-42-4)
- Tau Peptide (512-525) amide trifluoroacetate salt (CAS 2022956-61-0)
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