87681-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87681-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,8 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87681-42:
(7*8)+(6*7)+(5*6)+(4*8)+(3*1)+(2*4)+(1*2)=173
173 % 10 = 3
So 87681-42-3 is a valid CAS Registry Number.
87681-42-3Relevant articles and documents
Chemistry of Naturally Occurring Polyamines. 8. Total Synthesis of (+)-Hypusine
Tice, Colin M.,Ganem, Bruce
, p. 5048 - 5050 (1983)
As part of a program to synthesize biologically interesting polyamines and their conjugates, we report a new approach to the synthesis of hypusine (1), an unusual amino acid constituent of the eucaryotic translation initiation factor elF-4D.Hypusine is fo