3,5-dibromo-2-methoxythiophene CAS 77133-30-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 77133-30-3 |
| Molecular Formula | C5H4Br2OS |
| Molecular Weight | 271.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-dibromo-2-methoxythiophene (CAS 77133-30-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4Br2OS. Molecular weight: 271.96 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4Br2OS |
| Molecular Weight | 271.96 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| 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.) | 1979 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related dibromo Standards
- 2,5-Dibromo-3-methoxythiophene (CAS 148078-36-8)
- 2,2-Dibromo-1-methylcyclopropane-1-carbohydrazide (CAS 85426-53-5)
- 2,4-dibromo-2,4-dimethyl-3-pentanone (CAS 17346-16-6)
- 1,7-Dibromo-heptan-4-one (CAS 89774-18-5)
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- 1,4-Dibromo-piperazine-2,5-dione (CAS 37636-53-6)
- 1,3-Dibromo-2,5-difluorobenzene (CAS 128259-68-7)
Recommended Standards
- (4,5-Dibromothiophen-3-yl)methanol (CAS 73919-89-8)
- 2-(bromomethyl)-4,6-dichloro-pyridine-3-carbonitrile (CAS 1589541-02-5)
- (4,5-Dibromothiophen-2-yl)methanol (CAS 773868-55-6)
- 1-(2-Bromo-6-fluorophenyl)-2-methylpropan-1-one (CAS 693285-70-0)
- 1-Bromo-4-((2-bromoethoxy)methyl)benzene (CAS 103061-55-8)
- N-(4-Chlorophenyl)-4-(4-cyanophenyl)tetrahydro-1(2H)-pyrazinecarboxamide (CAS 478046-85-4)
- 3-methylpiperidin-4-one hydrochloride (CAS 4629-78-1)
- 2,2,2-Trifluoro-1-(4'-methyl-[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 1079392-70-3)
- 3-(Azidomethyl)tetrahydrofuran (CAS 85182-08-7)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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