1-Bromophthalazine CAS 3660-91-1
| CAS No. | 3660-91-1 |
| Molecular Formula | C8H5BrN2 |
| Molecular Weight | 209.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Bromophthalazine (CAS 3660-91-1), molecular formula C8H5BrN2 and molecular weight 209.04 g/mol, is a CATO reference standard with documented purity and traceability.
1-Bromophthalazine (C8H5BrN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-Bromophthalazine 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 | C8H5BrN2 |
| Molecular Weight | 209.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophthalazine Standards
Recommended Standards
- 1-Bromo-2,7-naphthyridine (CAS 86278-61-7)
- 2-Acetoxyisobutyryl Bromide (CAS 40635-67-4)
- 1-Bromo-2,6-naphthyridine (CAS 81044-15-7)
- 2-Bromo-1,5-naphthyridine (CAS 51532-07-1)
- 2-(2,3-Dimethoxyphenoxy)-4-methylthiazole-5-carboxylic acid (CAS 1224165-34-7)
- TPB26-2Br (CAS 1392832-46-0)
- S-4-Ethynylbenzyl ethanethioate (CAS 307537-95-7)
- N-((4,6-Dimethylpyrimidin-2-yl)carbamoyl)-2-nitrobenzenesulfonamide (CAS 72839-91-9)
- 2,6-Di-O-palmitoyl-L-ascorbic acid (CAS 4218-81-9)
- 6-((Tert-butoxycarbonyl)amino)bicyclo[3.1.1]Heptane-3-carboxylic acid (CAS 1334146-33-6)
- Methyl 2-amino-3-bromo-6-nitrobenzoate (CAS 2091422-33-0)
- Methyl benzylprolinate (CAS 201406-78-2)
- Methyl 3,4-difluoro-5-hydroxybenzoate (CAS 1214378-78-5)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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