2-Aminobut-3-ynoic acid hydrochloride CAS 1956306-52-7
| CAS No. | 1956306-52-7 |
| Molecular Formula | C4H5NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Aminobut-3-ynoic acid hydrochloride is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Aminobut-3-ynoic acid hydrochloride (CAS 1956306-52-7), molecular formula C4H5NO2HCl and molecular weight 135.55 g/mol, is a CATO reference standard with documented purity and traceability.
2-Aminobut-3-ynoic acid hydrochloride (C4H5NO2HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C4H5NO2 HCl |
| Molecular Weight | 135.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Aminobut Standards
- 1-(4-Aminobut-1-yl)-1H-1,2,4-triazole dihydrochloride (CAS 100327-49-9)
- EThyl 4-aminobut-2-enoate (CAS 102236-26-0)
- (R)-2-Aminobut-3-enoic acid hydrochloride (CAS 105763-41-5)
- Ethyl 4-aminobut-2-ynoate (CAS 113439-85-3)
- Ethyl 4-aminobut-2-ynoate hydrochloride (CAS 113439-86-4)
- (S)-2-Aminobut-3-en-1-ol (CAS 117609-25-3)
- (S)-1-Aminobut-3-en-2-ol (CAS 1197992-11-2)
- Ethyl 4-aminobut-2-enoate (CAS 1218810-52-6)
Recommended Standards
- 2-Pyridin-4-ylquinoline-4-carbonyl chloridehydrochloride (CAS 174636-68-1)
- 2-(Bromomethyl)-3,4-dichloro-1-fluorobenzene (CAS 886497-51-4)
- 5-(4-Chlorophenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide (CAS 832737-47-0)
- 2-(Difluoromethyl)-2-methylcyclopropan-1-amine hydrochloride (CAS 2411265-47-7)
- [2-(2-methyl-1H-imidazol-1-yl)pyridin-3-yl]methanamine (CAS 954569-50-7)
- 3-(piperazin-1-yl)pyridazine 3-Piperazin-1-yl-pyridazine 51047-56-4 A24750 (CAS 51047-56-4)
- 1,7-Diaminoanthracene-9,10-dione (CAS 3927-72-8)
- (R)-2-Ethylpiperazine, 97% (CAS 393781-72-1)
- 2-(Acetylamino)-2-deoxy-D-glucopyranose 3,4,6-Triacetate (CAS 34051-43-9)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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