98624-30-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98624-30-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,2 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98624-30:
(7*9)+(6*8)+(5*6)+(4*2)+(3*4)+(2*3)+(1*0)=167
167 % 10 = 7
So 98624-30-7 is a valid CAS Registry Number.
98624-30-7Relevant academic research and scientific papers
4,9-DISUBSTITUTED 1,10-ANTHRAQUINONES AND THEIR TAUTOMERISM
Popov, S. I.,Volosenko, V. P.
, p. 983 - 989 (2007/10/02)
The N-alkyl-, N-aryl-, and N-acetyl-substituted 9-imines of 1-hydroxy-4-aminoanthraquinone exist preferentially in the 4,9-diamino-1,10-anthraquinone form.Tautomerism is only observed for diamines with reduced basicity in the nitrogen atom at position 9.
