21120-91-2 7-bromanylbicyclo[4.2.0]octa-1,3,5,7-tetraene 7-bromobicyclo[4.2.0]octa-1,3,5,7-tetraene A815144 CAS 21120-91-2
| CAS No. | 21120-91-2 |
| Molecular Formula | C8H13Br |
| Molecular Weight | 189.09 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 21120-91-2 7-bromanylbicyclo[4.2.0]octa-1,3,5,7-tetraene 7-bromobicyclo[4.2.0]octa-1,3,5,7-tetraene A815144.
21120-91-2 7-bromanylbicyclo[4.2.0]octa-1,3,5,7-tetraene 7-bromobicyclo[4.2.0]octa-1,3,5,7-tetraene A815144 (CAS 21120-91-2), molecular formula C8H13Br and molecular weight 189.09 g/mol, is a CATO reference standard with documented purity and traceability.
21120-91-2 7-bromanylbicyclo[4.2.0]octa-1,3,5,7-tetraene 7-bromobicyclo[4.2.0]octa-1,3,5,7-tetraene A815144 (C8H13Br) contains bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 21120-91-2 7-bromanylbicyclo[4.2.0]octa-1,3,5,7-tetraene 7-bromobicyclo[4.2.0]octa-1,3,5,7-tetraene A815144 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 | C8H13Br |
| Molecular Weight | 189.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Recommended Standards
- 1-BROMO-2-VINYLBENZENE 2-BROMOSTYRENE 2039-88-5 ARKPHARMLTD ARK-04134 BC004996 BENZENE, 1-BROMO-2-ETHENYL- O-BROMOSTYRENE (CAS 2039-88-5)
- 81216-13-9 8-bromo-1-octyne DTXSID40455373 (CAS 81216-13-9)
- 5-Bromocyclooct-1-ene (CAS 4103-12-2)
- LF0SJ1821N 98-81-7 alpha-Bromostyrene Styrene, alpha-bromo- 4-05-00-01349 (Beilstein Handbook Reference) Benzene, (1-bromoethenyl)- BRN 2038866 1-Bromostyrene alpha-Bromostyrol [Russian] EINECS 202-702-4 1-Phenylvinyl bromide alpha-Bromostyrol UNII-LF0SJ1821N (CAS 98-81-7)
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Why CATO?
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