blue base nb
o-Dianisidine
CAS: 119-90-4
Molecular Formula: C14H16N2O2
blue base nb - Names and Identifiers
blue base nb - Physico-chemical Properties
| Molecular Formula | C14H16N2O2 |
| Molar Mass | 244.29 |
| Density | 1.1079 (rough estimate) |
| Melting Point | 137-138°C(lit.) |
| Boling Point | 387.21°C (rough estimate) |
| Flash Point | 403°F |
| Water Solubility | Soluble in alcohol, benzene, ether, chloroform, acetone, most organic solvents and lipids. Slightly soluble in water. |
| Solubility | H2O: slightly soluble |
| Vapor Presure | 2.49E-06mmHg at 25°C |
| Appearance | Crystalline Powder |
| Color | Pink to beige-brown |
| Merck | 14,2991 |
| BRN | 1879884 |
| pKa | 4.71±0.10(Predicted) |
| Storage Condition | Store at RT. |
| Refractive Index | 1.6000 (estimate) |
| Use | Used as analytical reagents, redox indicators, adsorption indicators and complexation indicators for iron testing |
blue base nb - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R45 - May cause cancer R22 - Harmful if swallowed |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | 2811 |
| WGK Germany | 3 |
| RTECS | DD0875000 |
| TSCA | Yes |
| HS Code | 29222990 |
| Hazard Class | 6.1(a) |
| Packing Group | II |
| Toxicity | Dianisidine is a probable carcinogen used in the manufacture of dyes. EPA has classified as a Group 2B—probable human carcinogen. |
blue base nb - Reference Information
| Color index | 37235 |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| (IARC) carcinogen classification | 2B (Vol. 4, Sup 7) 1987 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as pigment intermediate used as analytical reagent, redox indicator, adsorption indicator and iron complexation indicator mainly used as azo dye intermediates, such as direct Blue RG, direct Blue 5B, Lake blue 6B and other dyes, can also be used to detect gold, copper, determination of cobalt, copper, gold, vanadium, thiocyanate (Au, Co, Cu, SCN-, V), gold and nitrite (Au, NO2-, ce (IV) ). Redox indicator. Complexation indicator. Production of azo dyes. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 1920 mg/kg |
| flammability hazard characteristics | open flame, high thermal flammability; Reaction with oxidant; toxic NOx smoke from combustion |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from oxidants and food additives |
| fire extinguishing agent | foam, carbon dioxide, water mist, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:04:16
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Product Name: o-Dianisidine Request for quotation
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CAS: 119-90-4
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