3320-86-3 Benzene, 1-isocyanato-2-nitro- 2-Nitrophenyl isocyanate AI3-28252 EINECS 222-024-2 Isocyanic acid, o-nitrophenyl ester o-Nitrophenyl isocyanate NSC 5384 CAS 3320-86-3
| CAS No. | 3320-86-3 |
| Molecular Formula | C7H10N2O3 |
| Molecular Weight | 170.17 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.
3320-86-3 Benzene, 1-isocyanato-2-nitro- 2-Nitrophenyl isocyanate AI3-28252 EINECS 222-024-2 Isocyanic acid, o-nitrophenyl ester o-Nitrophenyl isocyanate NSC 5384 (CAS 3320-86-3) is a high-purity analytical reference standard with the molecular formula C7H10N2O3 and a molecular weight of 170.17 g/mol.
Based on its molecular formula C7H10N2O3, 3320-86-3 Benzene, 1-isocyanato-2-nitro- 2-Nitrophenyl isocyanate AI3-28252 EINECS 222-024-2 Isocyanic acid, o-nitrophenyl ester o-Nitrophenyl isocyanate NSC 5384 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H10N2O3 |
| Molecular Weight | 170.17 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, water |
| 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related Benzene Standards
- 3320-87-4 Benzene, 1-isocyanato-3-nitro- m-Nitrophenyl isocyanate AI3-28251 EINECS 222-025-8 Isocyanic acid, m-nitrophenyl ester 3-Nitrophenyl isocyanate NSC 5385 (CAS 3320-87-4)
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- 28479-22-3 Benzene, 2-chloro-4-isocyanato-1-methyl- 3-Chloro-p-tolyl isocyanate 3-Chloro-4-methylphenyl isocyanate EINECS 249-050-7 EC 249-050-7 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] UN2236 (CAS 28479-22-3)
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Recommended Standards
- Theophylline Impurity 3 (CAS 40012-14-4)
- Tetrahydrofuran-3-yl 2-amino-2-cyanoacetate (CAS 215045-93-5)
- 4977-62-2 Acetic acid, ethyl ester Ethyl 2-acetamido-2-cyanoacetate Ethyl acetamidocyanoacetate Glycine, ethyl ester NSC-49313 NSC49313 (CAS 4977-62-2)
- Propyl 5-oxo-2,5-dihydro-1H-imidazole-4-carboxylate (CAS 952735-34-1)
- Ethyl 2-(2-nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetate (CAS 1198615-90-5)
- (3R,8AS)-3-methylhexahydropyrrolo[1,2-a]pyrazin-4(1H)-one hydrochloride (CAS 2230901-14-9)
- Azaserine (CAS 115-02-6)
- (R)-3-(1-((2-Bromoallyl)oxy)but-3-en-1-yl)furan (CAS 916593-46-9)
- Gadobutrol Impurity 182 (CAS CATO-C4X-2120182)
- 7-Bromo-1,2-dimethyl-1h-imidazo[4,5-c]pyridine (CAS 305337-73-9)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
- N-(4-(Benzofuran-2-yl)-6-methylbenzo[d]thiazol-2-yl)-2-(2,3-dihydrobenzofuran-5-yl)acetamide (CAS 2288708-59-6)
- Cyclopentyl(pyrimidin-2-yl)methanol (CAS 1182977-20-3)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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