1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carbohydrazide CAS 676997-68-5
| CAS No. | 676997-68-5 |
| Molecular Formula | C8H10N4OS |
| Molecular Weight | 210.26 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 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carbohydrazide.
CATO supplies 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carbohydrazide (CAS 676997-68-5), a certified reference material (molecular formula C8H10N4OS, MW 210.26 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H10N4OS, 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carbohydrazide contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 1,3-Dimethyl-1H-thieno[2,3-c]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 | C8H10N4OS |
| Molecular Weight | 210.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 2-(1,5-Dimethyl-1H-pyrazol-4-ylimino)-thiazolidin-4-one (CAS 1003993-33-6)
- 3-(1,3-Dimethyl-1H-pyrazol-4-yl)-2-thioxoimidazolidin-4-one (CAS 1004020-66-9)
- 3,7-Dimethyl-6-(methylthio)-3,7-dihydro-2H-purin-2-one (CAS 38759-27-2)
- (2,2-Dimethyl-1,3-dioxolan-4-yl)methyl methanesulfonate (CAS 84806-02-0)
- Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate (CAS 675819-58-6)
- 3-(1-Ethyl-3,5-dimethyl-1h-pyrazol-4-yl)-2-methylpropanoic acid (CAS 1007514-82-0)
- 2-(2,5-Dimethyl-1-phenyl-1H-pyrrol-3-yl)acetonitrile (CAS 100869-86-1)
- Ethyl 4-(3,5-dimethyl-pyrazol-1-yl)butyrate (CAS 1170589-47-5)
Recommended Standards
- (E)-1-(6-methylthiazolo[3,2-b][1,2,4]triazol-5-yl)ethan-1-one O-methyl oxime (CAS 478245-69-1)
- 2-(6-(Methylthio)-9H-purin-9-yl)ethanol (CAS 298-98-6)
- 8-Isopropyl-2-thioxo-2,3-dihydropyrazolo[1,5-a][1,3,5]triazin-4(1H)-one (CAS 1453186-94-1)
- 2-Amino-6-ethyl-7-methyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 364743-06-6)
- 1-(2-Fluorobenzyl)-3-iodo-1H-pyrazolo[3,4-b]pyridine (CAS 1313738-72-5)
- 3-(4-Isopropoxyphenyl)-3-phenylpropan-1-amine (CAS 672265-12-2)
- (2-Furylmethyl)(3,4,5-trimethoxybenzyl)amine hydrobromide (CAS 1609400-08-9)
- Benzo[d]thiazol-2-yl(4-methoxyphenyl)methanol (CAS 413606-87-8)
- 3-Benzylidene-5-chloroindolin-2-one (CAS 387342-89-4)
- 4-(N,S-dimethylsulfonimidoyl)benzoic acid (CAS 1621962-31-9)
- Ethyl 3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxylate (CAS 499787-31-4)
- 2-Chloro-5-(naphthalen-1-yl)oxazole (CAS 1609377-51-6)
- Relugolix Impurity 194 (CAS CATO-C4X-2429194)
- Glucagon receptor antagonist I (CAS 438618-32-7)
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