33803-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33803-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33803-31:
(7*3)+(6*3)+(5*8)+(4*0)+(3*3)+(2*3)+(1*1)=95
95 % 10 = 5
So 33803-31-5 is a valid CAS Registry Number.
33803-31-5Relevant articles and documents
Synthesis of Platanetin - A Naturally Occuring Prenylated Flavone
Dwivedi, P.,Kapoor, N. K.,Khanna, R. N.
, p. 77 - 78 (2007/10/02)
Platanetin (3,5,7,8-tetrahydroxy-6-C-prenylflavone) (I) has been synthesized by the prenylation of 8-hydroxygalangin. 8-Hydroxygalangin has been synthesized by a new route.
