2-Nitro-1-(3-nitrophenyl)ethan-1-ol CAS 18731-45-8
| CAS No. | 18731-45-8 |
| Molecular Formula | C8H8N2O5 |
| Molecular Weight | 212.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Nitro-1-(3-nitrophenyl)ethan-1-ol (CAS 18731-45-8), molecular formula C8H8N2O5 and molecular weight 212.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Nitro-1-(3-nitrophenyl)ethan-1-ol (C8H8N2O5) is characterized by an amino-acid-derived structure, an amide 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 2-Nitro-1-(3-nitrophenyl)ethan-1-ol 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 | C8H8N2O5 |
| Molecular Weight | 212.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Amino-4-nitro-5-methoxybenzoic Acid (CAS 196194-99-7)
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- N-Nitroso-N-isopropylurea (CAS 16830-14-1)
- 1-(Azepan-1-yl)-2-(3-(phenylsulfonyl)-1H-indol-1-yl)ethan-1-one (CAS 941925-03-7)
- (R)-2-[[(Benzyloxy)carbonyl]amino]-2-cyclohexylacetic Acid (CAS 69901-85-5)
- Vilanterol Impurity 47 (CAS 2762285-55-0（free base）)
- Dacarbazine Lactose Adduct Impurity (CAS CATO-C4X-23054)
- 7-Chloroquinolin-5-ol (CAS 1236162-22-3)
- 4-{2-[(2-Chlorobenzyl)oxy]ethyl}piperidinehydrochloride (CAS 1220030-36-3)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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