2-(1h-Pyrazol-1-yl)acetic acid hydrochloride CAS 118054-56-1
| CAS No. | 118054-56-1 |
| Molecular Formula | C5H6N2O2 |
| Molecular Weight | N/A |
| 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-(1h-Pyrazol-1-yl)acetic acid hydrochloride.
CATO supplies 2-(1h-Pyrazol-1-yl)acetic acid hydrochloride (CAS 118054-56-1), a certified reference material (molecular formula C5H6N2O2HCl, MW 162.57 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 2-(1h-Pyrazol-1-yl)acetic acid hydrochloride is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 2-(1h-Pyrazol-1-yl)acetic acid hydrochloride 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 | C5H6N2O2 HCl |
| Molecular Weight | 162.57 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related h Standards
- 3-(1H-Pyrazol-4-yl)benzoic acid (CAS 1002535-21-8)
- 1-(3-(1H-Pyrazol-1-yl)phenyl)-N,N-dimethylmethanamine (CAS 1003993-34-7)
- 3-(4-(1H-Pyrazol-1-yl)phenyl)-6-(methylthio)pyridazine (CAS 1004184-50-2)
- 1-((1h-Pyrazol-1-yl)methyl)-1h-pyrazole-3-carbohydrazide (CAS 1004192-91-9)
- 2-((6-(4-(1H-Pyrazol-1-yl)phenyl)pyridazin-3-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 1004439-73-9)
- 3-(1-(1H-Pyrazol-4-yl)propyl)-2-thioxoimidazolidin-4-one (CAS 1004643-56-4)
- 1-(5-methyl-pyraZol-1-yl)-propan-2-one (CAS 1004643-66-6)
- 1-((1H-pyrazol-1-yl)methyl)-1H-pyrazole-3-carboxylic acid (CAS 1005631-12-8)
Recommended Standards
- (2-Bromo-5-(trifluoromethyl)phenyl)(4-methylpiperazin-1-yl)methanone (CAS 1502628-61-6)
- (Z)-4-Benzylidene-3-(phenoxymethyl)isoxazol-5(4H)-one (CAS 112082-71-0)
- 1-Trifluoromethyl-1H-pyrazole (CAS 169382-91-6)
- (S)-(-)-4’-Benzyloxyphenyl Carvedilol (CAS 1217733-91-9)
- 4-Bromo-5-fluoro-2-hydroxybenzoic acid (CAS 1784366-04-6)
- S-acetyl-PEG5-alcohol (CAS 1000415-61-1)
- (3R,4S)-1-Benzyl-3,4-dimethylpyrrolidine-3,4-dicarboxylic acid (CAS 1217752-40-3)
- Lemborexant impurity 17 (CAS 1450904-92-3)
- 4-[5-methyl-2-(propan-2-yl)phenoxymethyl]benzohydrazide (CAS 379254-46-3)
- 103244-41-3 Insulin-like Growth Factor-II fragment 33-40 Ser-Arg-Val-Ser-Arg-Arg-Ser-Arg (CAS 103244-41-3)
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