3,3-Dimethyl-1-(4-phenyl-2-thiazolyl)-1-(4-methoxyphenyl)-5-hydroxy[4,5]-bipyrazol CAS 245039-27-4
| CAS No. | 245039-27-4 |
| Molecular Formula | C24H21N5O2S |
| Molecular Weight | 443.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,3-Dimethyl-1-(4-phenyl-2-thiazolyl)-1-(4-methoxyphenyl)-5-hydroxy[4,5]-bipyrazol (CAS 245039-27-4), a certified reference material (molecular formula C24H21N5O2S, MW 443.52 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3,3-Dimethyl-1-(4-phenyl-2-thiazolyl)-1-(4-methoxyphenyl)-5-hydroxy[4,5]-bipyrazol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 443.52 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.
As a certified reference material (CRM), 3,3-Dimethyl-1-(4-phenyl-2-thiazolyl)-1-(4-methoxyphenyl)-5-hydroxy[4,5]-bipyrazol 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 | C24H21N5O2S |
| Molecular Weight | 443.52 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 3,3-Dimethyl-1-(4-(4-methoxyphenyl)-2-thiazolyl)-1-phenyl-5-hydroxy[4,5]-bipyrazol (CAS 245039-40-1)
- N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-3-methyl-1-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxamide (CAS 306959-01-3)
- 2,6-Dimethyl-3,5-Diethoxycarbonyl-4-(O-Difluoromethylsulfonylphenyl)-1,4-Dihydropyridine (CAS 84761-75-1)
- 7,9-Dimethyl-2-((4-methylbenzyl)thio)-4-phenoxypyrido[3',2':4,5]thieno[3,2-d]pyrimidine (CAS 478065-69-9)
- N-(5,6-Dimethyl-1-octyl-1H-1,3-benzodiazol-4-yl)-4-methoxybenzene-1-sulfonamide (CAS 338955-39-8)
- 4-(2-(1,2-Dimethyl-1H-indol-3-yl)-3,3,4,4,5,5-hexafluorocyclopent-1-en-1-yl)-5-methylthiophene-2-carbaldehyde (CAS 1400275-94-6)
- 2-((3,3-Dimethyl-2-oxobutyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477331-67-2)
- 1,3-Dimethyl 5,5-dicyano-2-hydroxy-4,6-bis(4-methylphenyl)cyclohex-1-ene-1,3-dicarboxylate (CAS 547769-61-9)
Recommended Standards
- 5-((3-(4-Isobutoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 623935-26-2)
- 2-[(2-Bromoethyl)sulfanyl]propane (CAS 5755-62-4)
- MLN4924 (CAS 905579-51-3)
- 2-({[5-(3,4-Dimethoxyphenyl)-4-phenyl-4H-1,2,4-triazol-3-yl]thio}methyl)-1H-benzimidazole (CAS 311783-85-4)
- 1-(2,4-Difluorophenyl)-2-(piperazin-1-yl)ethan-1-one (CAS 1072876-84-6)
- 4-(3,4-Difluorobenzyl)piperidine hydrochloride (CAS 193357-75-4)
- Rel-(4aS,8aR)-3,3-dichlorooctahydroquinolin-2(1H)-one (CAS 87624-26-8)
- 5-(Morpholin-4-ylmethyl)-4-phenyl-4H-1,2,4-triazole-3-thiol (CAS 65924-85-8)
- 3-Chloro-4-hydroxybenzoic acid hydrate(2:1) (CAS 128161-59-1)
- (R)-2-Amino-4-(3,4,5-trimethoxyphenyl)butanoic acid (CAS 1260603-63-1)
- Cyclopent-1-en-1-ylboronic acid (CAS 850036-28-1)
- 1-Benzylidene-2-(diphenylmethylene)hydrazine (CAS 13118-38-2)
- 3240-09-3 6OVV4Q22O6 5-Methyl-5-hexen-2-one 5-Hexen-2-one, 5-methyl- 5-Methylhex-5-en-2-one EINECS 221-807-6 FEMA No. 3365 NSC 21640 UNII-6OVV4Q22O6 (CAS 3240-09-3)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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