1,3-Dimethyl-1H-pyrazole-5-carboxylic acid CAS 5744-56-9
| CAS No. | 5744-56-9 |
| Molecular Formula | C6H8N2O2 |
| Molecular Weight | 140.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 140.14 g/mol gives 1,3-Dimethyl-1H-pyrazole-5-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,3-Dimethyl-1H-pyrazole-5-carboxylic acid (CAS 5744-56-9), molecular formula C6H8N2O2 and molecular weight 140.14 g/mol, is a CATO reference standard with documented purity and traceability.
1,3-Dimethyl-1H-pyrazole-5-carboxylic acid (C6H8N2O2) contains an amino-acid-derived structure, an amide 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,3-Dimethyl-1H-pyrazole-5-carboxylic acid 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 | C6H8N2O2 |
| Molecular Weight | 140.14 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Dimethyl Standards
- 1,5-Dimethyl-1H-imidazole-2-carboxylic acid (CAS 1196155-94-8)
- 1,2-Dimethyl-1H-imidazole-4-carboxylic acid (CAS 1211585-57-7)
- 4,5-Dimethyl-1H-imidazole-2-carboxylic acid (CAS 125001-20-9)
- Dimethyl-1H-1,2,3-triazole-4-carboxamide (CAS 1267863-82-0)
- 1,4-Dimethyl-1H-pyrazole-5-carboxylic Acid (CAS 13745-58-9)
- 2,4-Dimethyl-furan-3-carboxylic acid (CAS 15058-72-7)
- 1,2-Dimethyl-3-nitro-1H-pyrrole (CAS 72083-72-8)
- 1,4-Dimethyl-1H-imidazole-2-carboxylic acid (CAS 933687-10-6)
Recommended Standards
- 1,2-Diazaspiro[2.4]hept-1-ene-5-carboxylic acid (CAS 2098110-76-8)
- 1,4-Dimethylimidazole-5-carboxylic Acid (CAS 78449-67-9)
- 1,2,6,7-Tetrahydroimidazo[2,1-c][1,2,4]triazin-3(4H)-one (CAS 62638-42-0)
- 1,4-Dimethylpyrazole-3-carboxylic Acid (CAS 89202-89-1)
- 3-hydroxy-4-methylpyridine-2-carboxylic acid hydrochloride (CAS 2060030-04-6)
- 7-Chloro-2,3-dihydro-1h-indole hydrochloride (CAS 1171625-52-7)
- 1-((3,4-Dichlorophenyl)thio)pentan-2-one (CAS 1494539-88-6)
- (S)-2-(2-Acetamido-3-(1H-indol-3-yl)propanamido)acetic acid (CAS 23506-40-3)
- 2-(Methylamino)-1-(4-phenyl-3,6-dihydropyridin-1(2H)-yl)ethan-1-one (CAS 1178473-92-1)
- (S)-tert-Butyl 3-((S)-2-amino-N-ethylpropanamido)pyrrolidine-1-carboxylate (CAS 1401668-28-7)
- 4-{[5-(1H-indol-3-yl)-1,3,4-oxadiazol-2-yl]amino}benzoic acid (CAS 1955564-38-1)
- S-(benzo[d]thiazol-2-yl) (Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(methoxyimino)ethanethioate (CAS 89604-91-1)
- (3S)-3-(iodomethyl)-3,4-dihydro-2H-isoquinolin-1-one (CAS 1057341-36-2)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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