Pyridostigmine-d3 Bromide CAS 1633751-00-4
| CAS No. | 1633751-00-4 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyridostigmine-d3 Bromide (CAS 1633751-00-4), molecular formula C9H10D3N2O2Br and molecular weight 264.14 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Pyridostigmine-d3 Bromide (C9H10D3N2O2Br) is characterized by deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Pyridostigmine-d3 Bromide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10D3N2O2 Br |
| Molecular Weight | 264.14 g/mol |
| Appearance | Off-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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Pyridostigmine Standards
- Pyridostigmine Bromide (CAS 101-26-8)
- Pyridostigmine (CAS 155-97-5)
- Pyridostigmine-d6 Bromide (CAS 2375858-08-3)
- Pyridostigmine EP Impurity B Bromide (CAS 31034-86-3)
- Pyridostigmine Impurity 2 (CAS 4685-07-8(free base))
- Pyridostigmine Bromide EP Impurity A (CAS 51581-32-9)
- Pyridostigmine Bromide Hydroxy Impurity (CAS 587-32-6)
- Pyridostigmine Impurity 3 (CAS 7500-05-2)
Recommended Standards
- H-Lys(Fmoc)-OMe · HCl (CAS 201009-98-5)
- Ethyl 2-{[(tert-butoxy)carbonyl]amino}-3-{[2-(2,4-dichlorophenyl)-2-oxoethyl]sulfanyl}propanoate (CAS 1101162-97-3)
- Photoinitiator127 (CAS 474510-57-1)
- Sodium DL-2-Hydroxybutyrate (CAS 5094-24-6)
- Ethyl hex-5-en-2-yloxycarbamate (CAS 61807-46-3)
- 3-(Boc-amino)-1-amino-2-propanol (CAS 144912-84-5)
- Dimesitylmethane (CAS 733-07-3)
- 3-[(4-ethoxyphenyl)sulfamoyl]benzoic acid (CAS 325721-18-4)
- 2-(2-Methoxyphenoxy)acetaldehyde (CAS 18167-91-4)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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