3,9-Dibromoperylene CAS 56752-35-3
| CAS No. | 56752-35-3 |
| Molecular Formula | C20H10Br2 |
| Molecular Weight | 410.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 410.10 g/mol gives 3,9-Dibromoperylene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3,9-Dibromoperylene (CAS 56752-35-3), molecular formula C20H10Br2 and molecular weight 410.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H10Br2, 3,9-Dibromoperylene contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 410.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 3,9-Dibromoperylene 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 | C20H10Br2 |
| Molecular Weight | 410.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
Related Dibromoperylene Standards
Recommended Standards
- 4,4'-Dibromo-1,1'-spirobiindane-7,7'-diol (CAS 681481-91-4)
- (S)-4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diol (CAS 636601-27-9)
- 8,10-Dibromo-5,6-dihydro-2,4-dimethyl-4H-benzo[b]furo[3′,2′:6,7]cyclohepta[1,2-d]furan (CAS 220542-74-5)
- (R)-4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diol (CAS 681481-94-7)
- methyl [(2,6-difluoropyridin-3-yl)carbamoyl]formate (CAS 1803585-80-9)
- 3-(5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)aniline (CAS 1082784-57-3)
- (S)-2-(3-chloro-4-(trifluoromethyl)phenyl)-2-(methylamino)ethan-1-ol (CAS 1213678-10-4)
- (5-Amino-1-(4-chlorophenyl)-1H-pyrazol-4-yl)(o-tolyl)methanone (CAS 618091-34-2)
- 5-Chloro-2-hydroxyphenylacetic Acid (CAS 24161-38-4)
- Ethyl 5-bromo-2-hydroxy-3-nitrobenzoate (CAS 773136-20-2)
- Dihydrochlamydocin (CAS 157618-75-2)
- Dimethyl 4,4’-(2-Hydroxyacetyl)dibenzoate (CAS 40742-02-7)
- 2-((1S,2R)-2-(2-methoxyphenyl)cyclopropyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2066512-91-0)
- Semaglutide impurity 258 (CAS CATO-C4X-2226258)
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