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| CAS No.: | 483-84-1 |
|---|---|
| Name: | FLAVIANIC ACID |
| Molecular Structure: | |
|
|
|
| Formula: | C10H6 N2 O8 S |
| Molecular Weight: | 314.232 |
| Synonyms: | Flavianicacid (6CI); 2,4-Dinitro-1-naphthol-7-sulfonic acid; DNNS; NSC 243753; NSC244041 |
| EINECS: | 207-600-3 |
| Density: | 1.865 g/cm3 |
| Melting Point: | 148-151 °C(lit.) |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Solubility: | 0.1% IN H2O; CLEAR TO SLIGHTLY HAZY, YELLOW TO YELLOW ORANGE SOLUTION |
| Appearance: | YELLOW POWDER OR CRYSTALLINE POWDER |
| Hazard Symbols: |
 C
|
| Risk Codes: | 34-40 |
| Safety: | Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx. |
| Transport Information: | UN 1759 8 |
| PSA: | 174.62000 |
| LogP: | 3.73570 |
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Chemistry
IUPAC Name: 8-Hydroxy-5,7-dinitronaphthalene-2-sulfonic acid
Synonyms of Flavianic acid (CAS NO.483-84-1) : 2,4-Dinitro-1-naphthol-7-sulfonic acid ; 2,4-Dinitronaphtholsulfonic acid ; 8-Hydroxy-5,7-dinitro-2-naphthalenesulfonic acid ; 2-Naphthalenesulfonic acid, 5,7-dinitro-8-hydroxy- ; 2-Naphthalenesulfonic acid, 8-hydroxy-5,7-dinitro-
CAS NO:483-84-1
Molecular Formula:C10H6N2O8S
Molecular Weight :314.2282
Molecular Structure :
EINECS: 207-600-3
Index of Refraction: 1.744
Surface Tension: 101.4 dyne/cm
Density: 1.865 g/cm3
Melting Point: 148-151 °C(lit.)
Appearance: Flavianic acid (CAS NO.483-84-1) is light yellow needle crystal.
Solubility:Soluble in water and alcohol.
Uses
Flavianic acid (CAS NO.483-84-1) is used as intermediates in organic synthesis, organic alkali precipitation agent and amino acid reagents. The product reacts with more than 50 kinds of metal ions, but only in acidic solution with the zirconium, lead precipitated for determination of zirconium with the selectivity and high sensitivity.
Production
Flavianic acid (CAS NO.483-84-1) can be derived from by the sulfonation and nitration of α-Naphthol. Adding 200g25% fuming sulfuric acid slowly into 50g α-naphthol, with stirring to be dissolved , reaction at 125 ℃ for 1h. After reaction is completed, cooling, mixed with 500g ice , filtered. In the filtrate ,add 120g the relative density of 1.40 of concentrated nitric acid , heating 1.5h at 50 ℃.Set reactants at room temperature for 12h, filtered, recrystallized with dilute hydrochloric acid, drying ,that was the Flavianic acid (CAS NO.483-84-1).
Toxicity Data With Reference
| 1. | mmo-sat 10 µmol/plate | MUREAV Mutation Research. 58 (1978),11. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.
Hazard Codes
C
Risk Statements 34-40
R34:Causes burns.
R40:Limited evidence of a carcinogenic effect.
Safety Statements 22-26-36/37/39-45
S22:Do not breathe dust.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR UN 1759 8/PG 3
WGK Germany 3
RTECS QK1810000
HazardClass 8
PackingGroup III