6305-43-7 1,4-Dibromobutanedione 2,3-Butanedione, 1,4-dibromo- 1,4-Dibromobutane-2,3-dione S 67 3-01-00-03110 (Beilstein Handbook Reference) BRN 0970154 alpha,alpha'-Dibromobiacetyl 2,2'-Dibromobiacetyl 1,4-Dibromo-2,3-butanedione EINECS 228-615-1 NSC 41130 NSC 75722 CAS 6305-43-7
| CAS No. | 6305-43-7 |
| Molecular Formula | C4H4Br2O2 |
| Molecular Weight | 243.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6305-43-7 1,4-Dibromobutanedione 2,3-Butanedione, 1,4-dibromo- 1,4-Dibromobutane-2,3-dione S 67 3-01-00-03110 (Beilstein Handbook Reference) BRN 0970154 alpha,alpha'-Dibromobiacetyl 2,2'-Dibromobiacetyl 1,4-Dibromo-2,3-butanedione EINECS 228-615-1 NSC 41130 NSC 75722 (CAS 6305-43-7) is a high-purity analytical reference standard with the molecular formula C4H4Br2O2 and a molecular weight of 243.88 g/mol.
Structurally, 6305-43-7 1,4-Dibromobutanedione 2,3-Butanedione, 1,4-dibromo- 1,4-Dibromobutane-2,3-dione S 67 3-01-00-03110 (Beilstein Handbook Reference) BRN 0970154 alpha,alpha'-Dibromobiacetyl 2,2'-Dibromobiacetyl 1,4-Dibromo-2,3-butanedione EINECS 228-615-1 NSC 41130 NSC 75722 (C4H4Br2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 243.88 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 6305-43-7 1,4-Dibromobutanedione 2,3-Butanedione, 1,4-dibromo- 1,4-Dibromobutane-2,3-dione S 67 3-01-00-03110 (Beilstein Handbook Reference) BRN 0970154 alpha,alpha'-Dibromobiacetyl 2,2'-Dibromobiacetyl 1,4-Dibromo-2,3-butanedione EINECS 228-615-1 NSC 41130 NSC 75722 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 | C4H4Br2O2 |
| Molecular Weight | 243.88 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Recommended Standards
- 4-Bromo-3-oxobutanoyl bromide (CAS 52148-44-4)
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- 5-Bromo-1,2-dichloro-3-fluorobenzene (CAS 1000572-93-9)
- Benzyl 2-cyano-7,8-dihydro-1,6-naphthyridine-6(5H)-carboxylate (CAS 1416712-45-2)
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- 2-Methyl-3-oxoisoindoline-5-carboxylic acid (CAS 1554206-04-0)
- 2-Phenyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine (CAS 1196154-90-1)
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- 2-Acetamido-4-methoxy-5-nitrotoluene (CAS 361162-90-5)
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- Peptide YY (3-36) (human) (CAS 123583-37-9)
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