3-(5-Bromothiophen-2-yl)-N'-(3-phenylallylidene)-1H-pyrazole-5-carbohydrazide CAS 307975-68-4
| CAS No. | 307975-68-4 |
| Molecular Formula | C17H13BrN4OS |
| Molecular Weight | 401.28 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 3-(5-Bromothiophen-2-yl)-N'-(3-phenylallylidene)-1H-pyrazole-5-carbohydrazide.
3-(5-Bromothiophen-2-yl)-N'-(3-phenylallylidene)-1H-pyrazole-5-carbohydrazide (CAS 307975-68-4) is a high-purity analytical reference standard with the molecular formula C17H13BrN4OS and a molecular weight of 401.28 g/mol.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, 3-(5-Bromothiophen-2-yl)-N'-(3-phenylallylidene)-1H-pyrazole-5-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 401.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 3-(5-Bromothiophen-2-yl)-N'-(3-phenylallylidene)-1H-pyrazole-5-carbohydrazide 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 | C17H13BrN4OS |
| Molecular Weight | 401.28 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- 4-(((5-Bromothiophen-2-yl)methylene)amino)-3-(2-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478254-55-6)
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- 3,6-Bis(5-bromothiophen-2-yl)-1,2,4,5-tetrazine (CAS 1279083-60-1)
- 2-(1-((5-Bromothiophen-2-yl)sulfonyl)azetidin-3-yl)-1H-benzo[d]imidazole (CAS 1251682-13-9)
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Recommended Standards
- 2,5-Dioxopyrrolidin-1-yl 4-(4-(bis(2-chloroethyl)amino)phenyl)butanoate (CAS 56842-79-6)
- 3-Amino-N-(3-bromo-4-ethoxy-phenyl)-4-methoxy-benzenesulfonamide (CAS 380442-20-6)
- 1-(3-Bromobenzoyl)-3-(5-hydroxynaphthalen-1-yl)thiourea (CAS 501686-05-1)
- 5-Amino-N-(3-bromo-4-ethoxy-phenyl)-2-methoxy-benzenesulfonamide (CAS 438031-69-7)
- 2-(2,3-Dihydroindol-1-yl)acetic acid (CAS 193544-62-6)
- n,n-Diethylsulfamoyl fluoride (CAS 382-97-8)
- 2-(tert-Butyl) 8-methyl 5-thia-2-azaspiro[3.4]octane-2,8-dicarboxylate (CAS 1823264-51-2)
- 1-(4-Bromo-2-fluorophenyl)pentan-2-one (CAS 1249060-60-3)
- 3-Methoxy-N-(thiophen-2-ylmethyl)propan-1-amine (CAS 932175-68-3)
- 2-(3-bromophenyl)-4-(chloromethyl)-1,3-thiazole (CAS 900640-85-9)
- 3481AF 5-Ethyl-1,3-dimethyl-1H-indole-2-carboxylic acid 928707-70-4 C13H15NO2 (CAS 928707-70-4)
- Tellurium Diethyldithiocarbamate (CAS 20941-65-5)
- 1-(4-Methoxyphenyl)-3-(m-tolyl)-1H-pyrazol-5-amine (CAS 618098-10-5)
- Anti-TF Antigen Peptide P30-1 trifluoroacetate salt (CAS 573664-50-3)
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