H-His-NH2 · 2 HCl CAS 71666-95-0
| CAS No. | 71666-95-0 |
| Molecular Formula | C6H10N4O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of H-His-NH2 · 2 HCl is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
H-His-NH2 · 2 HCl (CAS 71666-95-0), molecular formula C6H10N4OHCl and molecular weight 190.63 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, H-His-NH2 · 2 HCl (C6H10N4OHCl) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 190.63 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C6H10N4O 2*HCl |
| Molecular Weight | 190.63 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 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
- 3,4-Bis(dodecyloxy)benzoic acid (CAS 131525-58-1)
- Ethyl 4-(2-(3-amino-2-oxopyridin-1(2H)-yl)ethyl)morpholine-2-carboxylate (CAS 2171110-40-8)
- Fosravuconazole Impurity 1 (CAS CATO-C3D-263000)
- 2-(Pyridin-4-yl)ethane-1-thiol (CAS 2127-05-1)
- N-(4-methoxy-3-methylphenyl)thietan-3-amine (CAS 1870889-13-6)
- (Z)-5-((1H-Indol-3-yl)methylene)-2-thioxooxazolidin-4-one (CAS 928299-30-3)
- Lenvatinib Impurity 30 (CAS 417717-04-5)
- (2-(3-Bromophenyl)benzo[d]oxazol-5-yl)methanol (CAS 1706443-16-4)
- Bis(1-[2-(pyridin-2-yloxy)phenyl]methanamine) trihydrochloride (CAS 2034207-73-1)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
Why CATO?
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