Basic Red 2
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Basic Red 2
structure -
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CAS No:
477-73-6
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Formula:
C20H19ClN4
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Chemical Name:
Basic Red 2
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Synonyms:
S NO 967;SAFRANIN A;SAFRANINE A,O,T,Y;SAFRANINE B;SAFRANINE ''O'';SAFRANINE T;SAFRANIN 'O';SAFRANIN O (Y,A, ETC)
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CAS No:
Description
Dark red to violet powder
A red dye that flu- oresces when exposed to selected wavelengths of light.
Crystallise it from *benzene/MeOH (1:1) or water. Dry it in vacuo over H2SO4. It has UV: at 520nm (H2O) and 530nm (EtOH). [Beilstein 25 H 403, 25 I 657, 25 III/IV
Basic Red 2 Basic Attributes
350.85
350.129822
3924099
207-518-8
XTX0YXU2HV
47719
TSCA listed
DTXSID60103122
S. No.: 967
32041300
Characteristics
530 nm
68.8
1.61230
S. No.: 967 Solid
1.00 g/mL at 20 °C
>240℃ (decompose)
507.14°C (rough estimate)
46 °C
n20/D1.339
soluble
Store at RT.
Intravenous-rat LD50: 28.74 mg/kg; Oral-mouse LD50: 1600 mg/kg
Flammable; burning produces toxic nitrogen oxides and chloride fumes
10 (10g/l, H2O, 20℃)
6.4(at 25℃)
CATIONIC
Keep in dark place,Inert atmosphere,Room temperature
Safety Information
Ⅲ
UN 1170 3/PG 3
3
Xi
26-39-24/25-36-16
SG1623000
Xi
Warehouse ventilated, low temperature and dry
Stable.
P280-P305 + P351 + P338
41-36/38-37/38-10-36/37/38
UN 1170 3/PG 3
Drug Information
Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. (See all compounds classified as Coloring Agents.)|Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant and Hackh's Chemical Dictionary, 5th ed, p301, p499) (See all compounds classified as Indicators and Reagents.)
...CATIONIC DYES PENETRATE INTO CELLS & STAIN CELL NUCLEI MORE READILY THAN DO ANIONIC DYES.
...BEST THAT CAN BE OFFERED FOR IMMEDIATE TREATMENT OF EYES CONTAMINATED WITH CATIONIC DYES IS COPIOUS IRRIGATION & METICULOUS MECHANICAL OR SURGICAL REMOVAL OF ALL PARTICLES. IRRIGATION WITH WATER OR SALINE SOLN IS RECOMMENDED...
SAFRANIN O...INJURIOUS TO...HUMAN EYE.
Basic Red 2
Basic Red 2 Use and Manufacturing
Using 2, 5-diaminotoluene, o-toluidine and aniline as raw materials, firstly equimolar 2, 5-diaminotoluene and o-toluidine are oxidized, and then condensed with aniline, and obtained by refining crystals and converting them into chlorides Finished product.
Used as a reagent for trace analysis of nitrous acid, redox indicator, acid-base indicator, biological stain
A biological stain used to stain Gram negative bacteria, chromosomes, mucin, cartilage and mast cells. Dyes and metabolites, Environmental Testing
In forensics to visualize details of cyanoacrylate-fumed friction ridges of human digits.
Phenazinium, 3,7-diamino-2,8-dimethyl-5-phenyl-, chloride (1:1): ACTIVE|Phenazinium, 3,7-diamino-2,8-dimethyl-5-phenyl-, chloride (1:1), homopolymer: ACTIVE|XU - indicates a substance exempt from reporting under the Chemical Data Reporting Rule, (40 CFR 711).|COSMETIC PREPARATIONS--LIPSTICKS MAY CONTAIN SAFRANIN /FROM TABLE/
Cosmetics -> Hair dyeing
Computed Properties
Molecular Weight:350.8
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:1
Exact Mass:350.1298243
Monoisotopic Mass:350.1298243
Topological Polar Surface Area:68.8
Heavy Atom Count:25
Complexity:405
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes
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