Methyl cyclobut-1-ene-1-carboxylate CAS 40628-41-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40628-41-9 |
| Molecular Formula | C6H8O2 |
| Molecular Weight | 112.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl cyclobut-1-ene-1-carboxylate (CAS 40628-41-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H8O2. Molecular weight: 112.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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.) | 1968 |
Related Methyl Standards
- Methyl cyclobut-2-ene-1-carboxylate (CAS 15963-45-8)
- cis-Cyclobut-3-ene-1,2-dicarboxylic Anhydride (CAS 10374-07-9)
- Ethyl cyclobut-1-ene-1-carboxylate (CAS 181941-46-8)
- 2-(Cyclobut-1-en-1-yl)pyridine (CAS 291778-15-9)
- 1-(cyclobut-1-en-1-yl)-4-ethenylbenzene 3-ethenylbicyclo[4,2,0]octa-1,3,5-triene 3-vinylbicyclo[4.2.0]octa-1,3,5-triene 4-Vinylbenzocyclobutene 4-vbcb 4-vinylbenzocyclobutene 4-vinylbenzocyclobutene /3-ethenylbicyclo[4,2,0]octa-1,3,5-triene 4-vinylbenzocyclobutene 97% 8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-ol hydrochloride 99717-87-0 vbcb (CAS 99717-87-0)
- (Cyclobut-2-en-1-yl)methanol (CAS 15963-49-2)
- Cyclobut-1-en-1-ylmethanol (CAS 89182-08-1)
- Cyclobut-1-ene-1,2-dicarboxylic acid (CAS 16508-05-7)
Recommended Standards
- Methyl 2-methylbut-3-ynoate (CAS 387401-01-6)
- n-(2-Cyanoethyl)-n-methylformamide (CAS 54014-00-5)
- Isopropyl Propiolate (CAS 96088-62-9)
- Methyl (R)-2-(2-methylpyrrolidin-2-yl)-1H-indole-4-carboxylate (CAS 1446261-53-5)
- (2R,3S,4S,5S)-2-Methyl-6-(pentyloxy)tetrahydro-2H-pyran-3,4,5-triol (CAS 494844-53-0)
- 4-(Vinyloxy)-1-butanol (CAS 17832-28-9)
- Rosuvastatin Impurity 63 (CAS 154026-95-6)
- Valaciclovir EP Impurity O (CAS CATO-C4X-124819)
- 4-{4-[(E)-2-Cyano-3-methoxy-3-oxo-1-propenyl]-2-pyrimidinyl}phenyl 2-thiophenecarboxylate (CAS 477871-08-2)
- Semaglutide (CAS 910463-68-2（free base）)
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 13829788188 / jacky.chen@cato-chem.com