4-Pentynoic Acid Methyl Ester CAS 21565-82-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21565-82-2 |
| Molecular Formula | C6H8O2 |
| Molecular Weight | 112.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Pentynoic Acid Methyl Ester (CAS 21565-82-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C6H8O2. Molecular weight: 112.13 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C6H8O2 |
| Molecular Weight | 112.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
Related Pentynoic Standards
- 2-Pentynoic Acid Methyl Ester (CAS 24342-04-9)
- 3-Pentynoic Acid Methyl Ester (CAS 22377-43-1)
- 3-Pentynoic Acid Ethyl Ester (CAS 52750-56-8)
- 4-Pentynoic Acid Ethyl Ester (CAS 63093-41-4)
- 3-Pentynoic Acid (CAS 36781-65-4)
- 2-Pentynoic Acid (CAS 5963-77-9)
- 6089-09-4 4-Pentynoic acid Pent-4-ynoic acid 4-02-00-01693 (Beilstein Handbook Reference) BRN 1742047 EINECS 228-028-0 Pent-4-yn-1-oic acid Propargylacetic acid (CAS 6089-09-4)
Recommended Standards
- 4-Methylpent-2-ynoic acid (CAS 65199-69-1)
- 4-vinyl-dihydrofuran-2(3H)-one (CAS 53627-36-4)
- 4-Methylcyclopentane-1,3-dione (CAS 35029-03-9)
- 2-(2-Hydroxycyclohexyl)acetonitrile (CAS 90242-33-4)
- 5,5'-(Terephthaloylbis(azanediyl))diisophthalic acid (CAS 120360-52-3)
- 4-(2,6-Difluorophenoxy)butanenitrile (CAS 1378344-87-6)
- 2-(3-(4-Bromophenyl)azetidin-3-yl)acetic acid hydrochloride (CAS 1803610-52-7)
- Methyl 2-(phenethylamino)acetate (CAS 156080-95-4)
- 2-(2,3-Dichloro-4-methoxyphenyl)acetaldehyde (CAS 93135-13-8)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
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