52259-70-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52259-70-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,2,5 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 52259-70:
(7*5)+(6*2)+(5*2)+(4*5)+(3*9)+(2*7)+(1*0)=118
118 % 10 = 8
So 52259-70-8 is a valid CAS Registry Number.
52259-70-8Relevant articles and documents
SYNTHESIS OF FAGARONINE
Smidrkal, Jan
, p. 3184 - 3192 (2007/10/02)
Alkaloids fagaronine (I), dihydrofagaronine (XXV) and oxyfagaronine (XXVI) were synthesized from 2,3-dihydroxynaphthalene (II) and 2-bromo-4,5-dimethoxybenzaldehyde (XI), the key synthetic steps being the preparation of 2-hydroxy-3-methoxy-5-nitronaphthal