2-(5-Oxo-4,5-dihydro-1h-pyrazol-3-yl)acetic acid CAS 860409-48-9
| CAS No. | 860409-48-9 |
| Molecular Formula | C5H6N2O3 |
| Molecular Weight | 142.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-Oxo-4,5-dihydro-1h-pyrazol-3-yl)acetic acid (CAS 860409-48-9), molecular formula C5H6N2O3 and molecular weight 142.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(5-Oxo-4,5-dihydro-1h-pyrazol-3-yl)acetic acid (C5H6N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.11 g/mol, it falls into the low-molecular-weight range. 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.
CATO manufactures 2-(5-Oxo-4,5-dihydro-1h-pyrazol-3-yl)acetic 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 | C5H6N2O3 |
| Molecular Weight | 142.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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 |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 5-Oxo-2,5-dihydro-1H-pyrazole-3-carbohydrazide (CAS 66483-27-0)
- 5-Oxo-4,5-dihydro-1H-pyrazole-4-carbohydrazide (CAS 395662-74-5)
- methyl 3,6-dihydro-2H-pyran-4-carboxylate (CAS 105772-14-3)
- Methyl 3,4-Dihydro-2H-pyran-6-carboxylate (CAS 129201-92-9)
- 2-(Dihydro-2H-pyran-4(3H)-ylidene)acetic Acid (CAS 130312-01-5)
- 2-(3,6-Dihydro-2H-pyran-4-yl)acetic acid (CAS 632328-42-8)
- 2-Methyl-4,5-dihydro-furan-3-carboxylicacidmethylester (CAS 32595-98-5)
- 6-Methyl-3,4-dihydro-2H-pyran-5-carboxylic acid (CAS 5399-21-3)
Recommended Standards
- 2-(3-Methyl-1,2,4-oxadiazol-5-yl)acetic acid, 97% (CAS 55151-91-2)
- 2-(hydroxymethyl)furan-3-carboxylic acid (CAS 23268-37-3)
- 2-(3-Hydroxy-1h-pyrazol-5-yl)acetic acid (CAS 924858-85-5)
- 2-(Hydroxymethyl)pyrimidine-4,6-diol (CAS 3748-16-1)
- (3-(3-((2,4-Dichlorobenzyl)oxy)phenyl)-1H-pyrazol-1-yl)(4-nitrophenyl)methanone (CAS 477712-57-5)
- (4-(Trifluoromethyl)pyridin-2-yl)methanamine (CAS 872577-05-4)
- tert-Butyl 2-(thiophen-2-yl)-3-thioxo-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxylate (CAS 931359-34-1)
- 7-(Benzyloxy)-4-methyl-2-oxo-2H-chromene-3-carbonitrile (CAS 331651-91-3)
- 2-(7-bromonaphthalen-2-yl)acetonitrile (CAS 127810-76-8)
- N-(1-(tert-butyl)-3-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-2-chlorobenzamide (CAS 477859-18-0)
- (2-Chloroethoxy)benzene .beta.-Chlorophenetole .beta.-Phenoxyethyl chloride 1-Phenoxy-2-chloroethane 2-Chloroethyl phenyl ether 2-Phenoxyethyl chloride 622-86-6 Benzene, (2-chloroethoxy)- Ether, 2-chloroethyl phenyl NSC-1073 NSC1073 Phenetole, .beta.-chloro- (CAS 622-86-6)
- tert-Butyl (S)-(-)-lactate (CAS 13650-70-9)
- 4-Hydrazinyl-2-(pyridin-3-yl)-6-(trifluoromethyl)pyrimidine (CAS 1306605-77-5)
- Tetrapeptide-30/Tegopep (CAS 1036207-61-0)
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