87768-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87768-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,6 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87768-18:
(7*8)+(6*7)+(5*7)+(4*6)+(3*8)+(2*1)+(1*8)=191
191 % 10 = 1
So 87768-18-1 is a valid CAS Registry Number.
87768-18-1Relevant articles and documents
UNE NOUVELLE SYNTHESE DE DERIVES DE L'INDANEDIONE-1,3
Babin, P.,Dunogues, J.
, p. 3071 - 3074 (2007/10/02)
Reaction of Ph3P=CH-COOEt with phthalic anhydride derivatives leads directly, or via the corresponding functional indenone, to 2-alkyl 2-ethoxy- carbonyl 1,3-indanediones according to an original process.
