327163-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 327163-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,7,1,6 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 327163-81:
(8*3)+(7*2)+(6*7)+(5*1)+(4*6)+(3*3)+(2*8)+(1*1)=135
135 % 10 = 5
So 327163-81-5 is a valid CAS Registry Number.
327163-81-5Relevant articles and documents
Synthesis of (+/-)-puraquinonic acid: an inducer of cell differentiation.
Clive,Sannigrahi,Hisaindee
, p. 954 - 961 (2007/10/03)
Puraquinonic acid (1) was synthesized from 2,5-dimethoxybenzoic acid by way of isochroman 2 and the indanone derivative 3, a Nazarov cyclization being used to construct the five-membered ring.