4372-02-5
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Basic information
- Product Name: disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate
- Synonyms: disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate;4',5'-Dibromofluorescein disodium;C.I.Acid Orange 11;D and C Orange No.6
- CAS NO:4372-02-5
- Molecular Formula: C20H8Br2Na2O5
- Molecular Weight: 534.06206
- EINECS: 224-468-2
- Product Categories: N/A
- Mol File: 4372-02-5.mol
- Article Data: 0
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Chemical Properties
- Melting Point: 280-290 °C (decomp)
- Boiling Point: 633.7°C at 760 mmHg
- Flash Point: 337°C
- Appearance: /
- Density: N/A
- Vapor Pressure: 1.18E-16mmHg at 25°C
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate(CAS DataBase Reference)
- NIST Chemistry Reference: disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate(4372-02-5)
- EPA Substance Registry System: disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate(4372-02-5)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 4372-02-5(Hazardous Substances Data)
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4372-02-5 Usage
Preparation
fluorescent element (C.I.Acid Yellow 73, C.I. 45350) in sodium hydroxide solution 2 brominated, and then, with sodium salting out.Properties and Applications
red light orange. Soluble in water for orange, with weak fluorescence, soluble in ethanol for orange, with greenish fluorescence, soluble in acetone for pink, with yellow fluorescence, soluble in chaff and four hydrogen furfuryl alcohol. The strong sulfuric acid for titian, diluted into yellow brown, and orange precipitation. In aqueous solution for countries to join sodium hydroxide red. In glycerin and liquid paraffin in good dispersion. Standard( Silk ) Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 1 2Standard( Silk )
Light FastnessFading
StainISO
1Check Digit Verification of cas no
The CAS Registry Mumber 4372-02-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,7 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.Calculate Digit Verification of CAS Registry Number 4372-02:
(6*4)+(5*3)+(4*7)+(3*2)+(2*0)+(1*2)=75
75 % 10 = 5
So 4372-02-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H10Br2O5.2Na/c21-15-13(23)7-5-11-17(15)26-18-12(6-8-14(24)16(18)22)20(11)10-4-2-1-3-9(10)19(25)27-20;;/h1-8,23-24H;;/q;2*+1/p-2
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4372-02-5Downstream Products
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disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate
