2,5-Dichloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid CAS 108469-42-7
| CAS No. | 108469-42-7 |
| Molecular Formula | C10H8Cl2N2O4S |
| Molecular Weight | 323.15 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 2,5-Dichloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid.
CATO supplies 2,5-Dichloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 108469-42-7), a certified reference material (molecular formula C10H8Cl2N2O4S, MW 323.15 g/mol) for analytical method development and quality control.
Structurally, 2,5-Dichloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid (C10H8Cl2N2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 323.15 g/mol, it falls into the moderately-high-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.
CATO manufactures 2,5-Dichloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid 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 | C10H8Cl2N2O4S |
| Molecular Weight | 323.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,5-Dichloro-4-(3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 108-46-9)
- (5,7-Dichloro-3-methylbenzofuran-2-yl)(4-fluorophenyl)methanone (CAS 306979-05-5)
- 2,5-Dichloro-4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 84-57-1)
- 6,8-Dichloro-3-(2-fluorobenzyl)quinazolin-4(3H)-one (CAS 302913-42-4)
- 2,2-DICHLORO-N-(1,3-DIHYDROXY-1-(4-NITROPHENYL)PROPAN-2-YL)ACETAMIDE (CAS 579-51-1)
- 3,9-Dichloro-7-methoxy-2-nitroacridine (CAS 42326-32-9)
- 2-[2-(3,4-Dichloro-phenyl)-vinyl]-6-hydroxy-benzoic acid methyl ester (CAS 1171921-85-9)
- 2,3-Dichloro-3-(1,3-dioxolan-2-yl)benzophenone (CAS 898759-49-4)
Recommended Standards
- 4-fluoro-6-methoxybenzene-1,3-disulfonyl dichloride (CAS 1210680-22-0)
- Crisaborole Impurity 58 (CAS CATO-C4X-202158)
- Methyl 2,6-dimethoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinate (CAS 1220423-76-6)
- N-{3-[(2-Bromoacetyl)amino]phenyl}-2-furamide (CAS 885983-65-3)
- N-(1-Oxo-1,3-dihydroisobenzofuran-5-yl)benzamide (CAS 500260-82-2)
- Benzo[d]isoxazol-3-yl acetate (CAS 540750-49-0)
- Ethyl 3-methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxylate (CAS 196806-14-1)
- 5-bromo-2-methyl-2H-pyrazolo[3,4-b]pyridine (CAS 1316852-65-9)
- 3-Bromo-5-methyl-7-propyl-pyrazolo[1,5-a]pyrimidine (CAS 43024-41-5)
- 1-(3-Chlorophenyl)naphthalene (CAS 7731-48-8)
- 2-Bromo-N-butyl-N-(1,1-dioxidotetrahydrothiophen-3-yl)benzamide (CAS 898413-57-5)
- (2-Methoxy-1-methylethyl)(3,4,5-trimethoxybenzyl)amine (CAS 356092-66-5)
- (S)-2-Amino-4-fluoro-4-methylpentanoic Acid (CAS 857026-04-1)
- Des-[Oct-γ-Glu-AEEA-AEEA]-Semaglutide (CAS CATO-C4X-2226112)
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