1,5-Dimethyl-1h-pyrazole-4-sulfonohydrazide CAS 1006328-52-4
| CAS No. | 1006328-52-4 |
| Molecular Formula | C5H10N4O2S |
| Molecular Weight | 190.22 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 1,5-Dimethyl-1h-pyrazole-4-sulfonohydrazide.
CATO supplies 1,5-Dimethyl-1h-pyrazole-4-sulfonohydrazide (CAS 1006328-52-4), a certified reference material (molecular formula C5H10N4O2S, MW 190.22 g/mol) for analytical method development and quality control.
1,5-Dimethyl-1h-pyrazole-4-sulfonohydrazide (C5H10N4O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H10N4O2S |
| Molecular Weight | 190.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 1,3-Dimethyl-1h-pyrazole-4-sulfonohydrazide (CAS 1006327-16-7)
- 2-(2,5-Dimethyl-1H-pyrrol-1-yl)-5-fluoropyridine (CAS 1482373-64-7)
- 6,7-Dimethyl-1H-indazole-3-carboxylic acid (CAS 1000340-61-3)
- 4,7-Dimethyl-1h-indazole-3-carboxylic acid (CAS 1000340-77-1)
- 1'-Ethyl-3',5'-dimethyl-1H,1'H-3,4'-bipyrazole (CAS 1006348-80-6)
- 3,7-Dimethyl-2H-indazole-5-carboxylic acid (CAS 1031417-75-0)
- 1,5-Dimethyl-1H-indazole-3-carboxylic acid (CAS 1033693-06-9)
- 1,5-Dimethyl-4-phenylimidazolidin-2-one (CAS 103774-40-9)
Recommended Standards
- Benzo[4,5]imidazo[2,1-b]thiazol-6-ol (CAS 103029-73-8)
- 1-Ethyl-1h-pyrazole-4-sulfonohydrazide (CAS 1003993-43-8)
- N-methyl(5-methyl-1,2-oxazol-3-yl)methanesulfonamide (CAS 1042787-05-2)
- Dicyclanil (CAS 112636-83-6)
- 2,4-Dichloro-5-(difluoromethoxy)benzodifluoride (CAS 1806296-73-0)
- 4-oxo-3,4-dihydroquinazoline-7-carboxylic acid (CAS 202197-73-7)
- 3-Bromo-5-(chloromethyl)-2-fluoropyridine (CAS 1227584-17-9)
- 951894-35-2 3-(4-Chloro-2-fluorophenyl)-2-methyl-1-propene MFCD09801305 (CAS 951894-35-2)
- N-Cyclopropyl-6-(4-fluorophenyl)imidazo[2,1-b]thiazole-3-carboxamide (CAS 1049439-67-9)
- 4-Cyclopropoxy-2-ethylbenzaldehyde (CAS 1243443-65-3)
- (5-(Aminomethyl)bicyclo[3.2.2]Nonan-1-yl)methanol hydrochloride (CAS 2108917-04-8)
- 5-Methoxy-4-(trimethylsilyl)nicotinotrile (CAS 1138444-11-7)
- 1-Benzylpiperidine-3-carboxamide (CAS 94379-05-2)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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