1,2-Bis(3-bromophenyl)ethyne CAS 153404-60-5
| CAS No. | 153404-60-5 |
| Molecular Formula | C14H8Br2 |
| Molecular Weight | 336.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,2-Bis(3-bromophenyl)ethyne.
1,2-Bis(3-bromophenyl)ethyne (CAS 153404-60-5), molecular formula C14H8Br2 and molecular weight 336.02 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H8Br2, 1,2-Bis(3-bromophenyl)ethyne contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 1,2-Bis(3-bromophenyl)ethyne under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H8Br2 |
| Molecular Weight | 336.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Br-containing |
Related Bis Standards
- 1,2-Bis(2-bromophenyl)ethyne (CAS 38399-13-2)
- Bis(4-bromophenyl)acetylene (CAS 2789-89-1)
- 3-(4-Bromophenyl)-5-(trifluoromethyl)isoxazole-4-carboxylic acid (CAS 1159978-82-1)
- 1-(4-bromophenyl)-5-(trifluoromethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1221724-13-5)
- 1-(3-Bromophenyl)-5-(trifluoromethyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1221725-66-1)
- 1-(2-Bromophenyl)-5-(trifluoromethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1312135-90-2)
- 2-(2-Bromophenyl)-5-(trifluoromethyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1708168-99-3)
- 1-(4-Bromophenyl)-2-(4-nitrophenoxy)ethan-1-one (CAS 111946-84-0)
Recommended Standards
- 1,8-Dibromoanthracene (CAS 131276-24-9)
- 9,10-Dibromophenanthrene (CAS 15810-15-8)
- (4-Bromo-3-(4-bromophenyl)-1H-pyrazol-5-yl)methanol (CAS 1239460-39-9)
- 3,6-Dibromophenanthrene (CAS 174735-02-5)
- 2-(3-Bromophenyl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 635305-38-3)
- Chloridazon-methyl-desphenyl D3 (CAS CATO-CCPD102039)
- 2-((4-Fluorobenzyl)thio)-4,5-diisobutyl-1-(prop-2-yn-1-yl)-1H-imidazole (CAS 338966-19-1)
- Diphenhydramine d5 Hydrochloride (CAS 1219795-16-0)
- 4-(4-Chlorophenyl)-5-methyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 303996-81-8)
- 4-Azetidinomethyl-4-cyanobenzophenone (CAS 898777-49-6)
- N-(2-nitro-3-(trifluoromethyl)phenyl)acetamide (CAS 387-19-9)
- 5-Sulfanyl-2,3-dihydro-1H-indol-2-one (CAS 794521-56-5)
- Mesalazine EP Impurity R (CAS 85-38-1)
- Insulin Lispro (CAS 133107-64-9)
Why CATO?
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