31028-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31028-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,2 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31028-87:
(7*3)+(6*1)+(5*0)+(4*2)+(3*8)+(2*8)+(1*7)=82
82 % 10 = 2
So 31028-87-2 is a valid CAS Registry Number.
31028-87-2Relevant 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.
