1-(4-Bromophenyl)-5-chloro-3-methyl-1H-pyrazole-4-carbaldehyde CAS 1005552-90-8
| CAS No. | 1005552-90-8 |
| Molecular Formula | C11H8BrClN2O |
| Molecular Weight | 299.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(4-Bromophenyl)-5-chloro-3-methyl-1H-pyrazole-4-carbaldehyde (C11H8BrClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 299.55 g/mol, it falls into the medium-molecular-weight range. 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).
CATO supplies 1-(4-Bromophenyl)-5-chloro-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1005552-90-8), a certified reference material (molecular formula C11H8BrClN2O, MW 299.55 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(4-Bromophenyl)-5-chloro-3-methyl-1H-pyrazole-4-carbaldehyde 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 | C11H8BrClN2O |
| Molecular Weight | 299.55 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, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- 2-[2-(2-bromophenyl)ethylsulfanyl]acetyl chloride (CAS 2737317-24-5)
- 1-(1-(4-Bromophenyl)ethyl)-3-butylurea (CAS 1090588-40-1)
- 2-[(3-bromophenyl)amino]-N-(2-methylpropyl)propanamide (CAS 1132788-27-2)
- 2-((4-Bromophenyl)amino)-N-(3-methylbutan-2-yl)acetamide (CAS 1303893-00-6)
- 5-((4-Bromophenyl)thio)thiophene-2-carbaldehyde (CAS 886361-55-3)
- 2-(3-(3-Bromophenyl)propoxy)tetrahydro-2H-pyran (CAS 162472-00-6)
- 2-(2-Bromophenyl)-6-methylquinazoline (CAS 149323-84-2)
- 1-(2-Bromophenyl)-5-phenyl-1H-pyrazole (CAS 299162-73-5)
Recommended Standards
- N-(3-Aminopropyl)-N-dodecylpropane-1,3-diamine (CAS 2372-82-9)
- 2-Bromo-3-((5-(chloromethyl)pyridin-2-yl)oxy)pyridine (CAS 1065484-66-3)
- 6-Chloro-N,N-bis(2-chloroethyl)-5-nitropyrimidin-4-amine (CAS 54413-39-7)
- 2-(2-bromopyridin-3-yloxy)-5-(chloromethyl)pyridine (CAS 1065484-75-4)
- 3-Amino-2-cycloheptylpropanoic acid hydrochloride (CAS 2126162-89-6)
- (2E)-3-(3-chloro-4-methylphenyl)acrylic acid (CAS 58537-08-9)
- 1-(Benzyloxy)-4-bromo-6-chloro-2-(trifluoromethyl)benzene (CAS 2070896-27-2)
- 2-(tert-Butoxy)-5-cyclopropoxy-4-fluoropyridine (CAS 1243363-05-4)
- (E)-tert-Butyl 4-(4-methylpiperazin-1-yl)but-2-enoate (CAS 1472802-55-3)
- (S)-2-amino-2-(3-fluoro-2-(trifluoromethyl)phenyl)ethan-1-ol (CAS 1212967-19-5)
- 3,6,7,8-Tetrahydro-2h-spiro[[1,4]dioxino[2,3-g]isoquinoline-9,1'-cyclopentane] hydrochloride (CAS 153643-88-0)
- 3-Hydrazinyl-5-methyl-4H-1,2,4-triazol-4-amine hydrochloride (CAS 873-28-9)
- FIlter blue green sodium salt (CAS 2137041-45-1)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com