33239-19-9 Usage
Uses
Erythrosin Yellowish is a dye.
Preparation
will fluorescent element (C.I.Acid Yellow 73, C.I. 45350) with iodine in aqueous solution and technique of or with chlorinated iodine and bases of two iodine.
Properties and Applications
yellow light red. Soluble in water is cherry red, no fluorescence. The strong sulfuric acid to tan, diluted the yellow for precipitation. In water solution to join sodium hydroxide to create soluble red precipitate.
Check Digit Verification of cas no
The CAS Registry Mumber 33239-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,2,3 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33239-19:
(7*3)+(6*3)+(5*2)+(4*3)+(3*9)+(2*1)+(1*9)=99
99 % 10 = 9
So 33239-19-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H10I2O5.2Na/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
