1,3-Propanediol, 2-butyl-2-ethyl-, polymer with 1,6-diisocyanatohexane CAS 169196-93-4
| CAS No. | 169196-93-4 |
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Propanediol, 2-butyl-2-ethyl-, polymer with 1,6-diisocyanatohexane (CAS 169196-93-4), molecular formula C8H12N2O2C9H20O2 and molecular weight 328.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,3-Propanediol, 2-butyl-2-ethyl-, polymer with 1,6-diisocyanatohexane (C8H12N2O2C9H20O2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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.
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 | C8H12N2O2 C9H20O2 |
| Molecular Weight | 328.45 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 6-Chloro-2-(3-nitrophenyl)imidazo[1,2-a]pyridine (CAS 352023-64-4)
- 2-(4-Acetylphenoxy)-2-phenylacetic acid (CAS 885949-44-0)
- DE-79 (Octas) Great Lakes (CAS 117964-21-3)
- N-(3-hydroxy-4-propionylphenyl)acetamide (CAS 66611-86-7)
- 3-(4-Nitrophenyl)-1-(p-tolyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-92-3)
- Ethyl 2-((4-chlorophenoxy)methyl)benzoate (CAS 1257524-52-9)
- tert-butyl 4-amino-3-formyl-1H-indole-1-carboxylate 1195784-87-2 A1-00545 (CAS 1195784-87-2)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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