9057-91-4 KL 3 Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene Poly(oxy(methyl-2-ethane)), toluene diisocyanate polymer Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, 1,3-diisocyanatomethylbenzene polymer Polypropylene glycol, toluene diisocyanate polymer Polypropylene glycol, toluenediisocyanate polymer Polypropyleneoxydiols, toluenediisocyanate polymer Toluene diisocyanate, polypropylene glycol polymer Toluene diisocyanate, polypropylene glycol resin CAS 9057-91-4
| CAS No. | 9057-91-4 |
| Molecular Formula | C9H12N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 9057-91-4 KL 3 Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene Poly(oxy(methyl-2-ethane)), toluene diisocyanate polymer Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, 1,3-diisocyanatomethylbenzene polymer Polypropylene glycol, toluene diisocyanate polymer Polypropylene glycol, toluenediisocyanate polymer Polypropyleneoxydiols, toluenediisocyanate polymer Toluene diisocyanate, polypropylene glycol polymer Toluene diisocyanate, polypropylene glycol resin is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
9057-91-4 KL 3 Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene Poly(oxy(methyl-2-ethane)), toluene diisocyanate polymer Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, 1,3-diisocyanatomethylbenzene polymer Polypropylene glycol, toluene diisocyanate polymer Polypropylene glycol, toluenediisocyanate polymer Polypropyleneoxydiols, toluenediisocyanate polymer Toluene diisocyanate, polypropylene glycol polymer Toluene diisocyanate, polypropylene glycol resin (CAS 9057-91-4), molecular formula C9H12N2O2C3H8O2 and molecular weight 256.30 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 9057-91-4 KL 3 Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene Poly(oxy(methyl-2-ethane)), toluene diisocyanate polymer Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-hydroxy-, 1,3-diisocyanatomethylbenzene polymer Polypropylene glycol, toluene diisocyanate polymer Polypropylene glycol, toluenediisocyanate polymer Polypropyleneoxydiols, toluenediisocyanate polymer Toluene diisocyanate, polypropylene glycol polymer Toluene diisocyanate, polypropylene glycol resin meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H12N2O2 C3H8O2 |
| Molecular Weight | 256.30 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-Chloropyrazole (CAS 14339-33-4)
- Triphenylbismuthdichloride (CAS 594-30-9)
- 2-((4-Acetamidocyclohexyl)(isopropyl)amino)acetic acid (CAS 1353988-45-0)
- 2-(Piperazin-1-yl)benzo[d]thiazole-5-carbonitrile (CAS 401567-17-7)
- 4-(2-Fluorophenyl)piperidine hydrochloride (CAS 691875-81-7)
- 2-(Difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-methanol (CAS 1806048-65-6)
- (1R,2R)-2-Methoxycyclopropanaminehydrochloride (CAS 2306254-20-4)
- N-[2-(2,4-Dimethylphenoxy)ethyl]-4-(phenethyloxy)-aniline (CAS 1040693-70-6)
- C26:0 Lyso PC (CAS 1213783-80-2)
- Endo-[Glu]31-Liraglutide (CAS CATO-C4X-199234)
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