3,4-Dibromo-5-methylthiophene-2-carboxylic acid CAS 858840-46-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 858840-46-7 |
| Molecular Formula | C6H4Br2O2S |
| Molecular Weight | 299.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dibromo-5-methylthiophene-2-carboxylic acid (CAS 858840-46-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H4Br2O2S. Molecular weight: 299.97 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H4Br2O2S |
| Molecular Weight | 299.97 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromo Standards
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- 5,7-Dibromo-2,3-dihydrothieno[3,4-β][1,4]dioxine (CAS 174508-31-7)
- 3,5-Dibromo-4-methylthiophene-2-carboxylic acid (CAS 856354-09-1)
- 4,5-Dibromo-3-methylthiophene-2-carboxylic acid (CAS 854626-32-7)
- Methyl 3,5-dibromo-2-carboxylate (CAS 62224-21-9)
- 2,4-Dibromo-5-fluorothioanisole (CAS 1314987-31-9)
- 2,6-Dibromo-4-fluorothioanisole (CAS 38366-77-7)
- 4,6-Dibromo-thieno[3,4-c][1,2,5]thiadiazole-2-SIV (CAS 238756-91-7)
Recommended Standards
- 2-(2,5-dibromothiophen-3-yl)acetic acid (CAS 77014-10-9)
- Methyl 2,5-dibromothiophene-3-carboxylate (CAS 89280-91-1)
- 3,4-Dibromothiophene-2-carbohydrazide (CAS 1399659-27-8)
- (1R,2S)-2-methoxycyclohexan-1-amine (CAS 742042-55-3)
- Tert-butyl 6'-fluoro-1',4'-dihydro-2'H-spiro[piperidine-4,3'-quinoline]-1-carboxylate (CAS 1439897-52-5)
- 1H-Indole-2-carboxylic acid, 6-amino-5-methyl-, ethyl ester (CAS 1175787-04-8)
- (R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)pyrrolidine-3-carboxylic acid (CAS 193693-65-1)
- Diethyl 2-(1-(1H-pyrrol-1-yl)cyclopentane-1-carbonyl)malonate (CAS 2231674-58-9)
- tert-Butyl 4-((2-fluorobenzyl)amino)piperidine-1-carboxylate (CAS 887583-63-3)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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