H-Pro-pNA · HBr CAS 7369-91-7
| CAS No. | 7369-91-7 |
| Molecular Formula | C11H13N3O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 316.15 g/mol gives H-Pro-pNA · HBr distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Pro-pNA · HBr (CAS 7369-91-7), molecular formula C11H13N3O3HBr and molecular weight 316.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, H-Pro-pNA · HBr (C11H13N3O3HBr) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 316.15 g/mol, it falls into the moderately-high-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.
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 | C11H13N3O3 HBr |
| Molecular Weight | 316.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 5-(tert-Butyl)-2-chlorooxazole (CAS 1060816-25-2)
- (4-Methoxyphenyl)(piperidin-4-yl)methanone (CAS 76362-12-4)
- 3-(Hydroxydiphenylmethyl)benzonitrile (CAS 57775-02-7)
- 1-Methyl-4-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 165404-08-0)
- 1-((5-Bromothiophen-2-yl)methyl)piperidine-3-carboxylic acid hydrochloride (CAS 1832639-77-6)
- 4-Chlorobenzo[b]thiophene-2-carbohydrazide (CAS 952182-46-6)
- 2-Fluoro-5-((8-methoxy-4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid (CAS 1174044-71-3)
- 2-(1H-Indol-3-yl)cyclohexanone (CAS 68221-96-5)
- 3’,4’-Dihydro-2’H-spiro[imidazolidine-4,1’-naphthalene]-2,5-dione (CAS 57998-96-6)
- Anti-Inflammatory Peptide 3 (CAS 118850-73-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com