2-(5-methyl-1H-1,2,4-triazol-3-yl)acetic acid CAS 720706-28-5
| CAS No. | 720706-28-5 |
| Molecular Formula | C5H11N3O2 |
| Molecular Weight | 145.16 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-methyl-1H-1,2,4-triazol-3-yl)acetic acid.
2-(5-methyl-1H-1,2,4-triazol-3-yl)acetic acid (CAS 720706-28-5) is a high-purity analytical reference standard with the molecular formula C5H11N3O2 and a molecular weight of 145.16 g/mol.
Based on its molecular formula C5H11N3O2, 2-(5-methyl-1H-1,2,4-triazol-3-yl)acetic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 145.16 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C5H11N3O2 |
| Molecular Weight | 145.16 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-(4-methyl-1H-1,2,3-triazol-1-yl)acetic acid (CAS 887405-58-5)
- 2-(Furan-2-yl)pyridine (CAS 55484-03-2)
- 2-(4-Formylphenyl)acetonitrile (CAS 55211-74-0)
- 2-(Hydroxymethyl)morpholine-4-carbaldehyde (CAS 561013-22-7)
- 2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(3-(pyridin-2-yldisulfanyl)propanamido)ethoxy)ethoxy)propanoate (CAS 2517392-28-6)
- N-(4-(morpholinosulfonyl)phenyl)hydrazinecarbothioamide (CAS 554404-09-0)
- 4-Amino-n-methyl-n-(prop-2-en-1-yl)benzene-1-sulfonamide (CAS 848652-86-8)
- 2-(4-Methoxyphenyl)-2,3-dihydrobenzofuran-5-ol (CAS 825634-84-2)
- 2-Methoxy-6-(piperazin-1-yl)pyridin-3-amine (CAS 1248450-43-2)
- 2,5-Dichloropyrimidine-4-carbonyl chloride (CAS 142652-27-5)
- (3,5-Dichlorophenyl)(4-methylpyridin-3-yl)methanone (CAS 1187170-97-3)
- (2R,3S,5S)-5-Acetoxy-2-(((4-methylbenzoyl)oxy)methyl)tetrahydrofuran-3-yl 4-methylbenzoate (CAS 57236-72-3)
- (3Ar,4s,9bs)-6-Methoxy-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-4-carboxylic acid (CAS 1415811-52-7)
- Peptide Impurity 34 (CAS 21282-09-7)
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