Bromocresol Green CAS 76-60-8
| CAS No. | 76-60-8 |
| Molecular Formula | C21H14Br4O5S |
| Molecular Weight | 698.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 698.01 g/mol gives Bromocresol Green distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Bromocresol Green (CAS 76-60-8) is a high-purity analytical reference standard with the molecular formula C21H14Br4O5S and a molecular weight of 698.01 g/mol.
Bromocresol Green (C21H14Br4O5S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Bromocresol Green meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H14Br4O5S |
| Molecular Weight | 698.01 g/mol |
| Purity | Technical Grade |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromocresol Standards
Recommended Standards
- 3-Keto-N-aminoethyl-N'-aminocaproyldihydrocinnamoyl Cyclopamine (CAS 306387-90-6)
- CAS 2315262-22-5 (CAS 2315262-22-5)
- Erythromycin impurity 56 (CAS CATO-C4X-100156)
- 4,4''-Dibromo-4',5'-bis(4-bromophenyl)-1,1':2',1''-terphenyl (CAS 1347702-48-0)
- 2-(Dimethylamino)benzonitrile (CAS 20925-24-0)
- 3-(2,4-dichlorophenoxy)propanoic acid (CAS 3284-80-8)
- Ethyl 2-acetamido-6-bromo-7-(3-(tert-butylamino)-2-hydroxypropoxy)benzo[b]thiophene-3-carboxylate (CAS 331760-73-7)
- 2-(1-Methyl-1H-pyrazol-3-yl)thiazole-5-carboxylic acid (CAS 1490297-97-6)
- 5',5""-Oxybis(2'-amino-[1,1':3',1"-terphenyl]-4,4"-dicarboxylic acid) (CAS 2345749-57-5)
- 7-Chloro-5-(2-fluorophenyl)-1,3,4,5-tetrahydro-2H-benzo[e][1,4]diazepin-2-one (CAS 844-15-5)
- 5-(4-Ethoxy-3-methoxybenzylidene)-2-morpholinothiazol-4(5H)-one (CAS 372503-67-8)
- Ibrutinib Impurity 170 (CAS CATO-C4X-1064170)
- Methyl (cyano(2,3-difluorophenyl)methyl)glycinate (CAS 1260667-51-3)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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 18665070610 / Nicole.chen@cato-chem.com