159753-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159753-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,7,5 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 159753-90:
(8*1)+(7*5)+(6*9)+(5*7)+(4*5)+(3*3)+(2*9)+(1*0)=179
179 % 10 = 9
So 159753-90-9 is a valid CAS Registry Number.
159753-90-9Relevant articles and documents
Synthesis of phenylalanines regiospecifically labelled with deuterium in the aromatic ring
Nishiyama,Oba,Ueno,Morita,Nakamura,Kainosho
, p. 831 - 837 (2007/10/02)
Phenylalanines regiospecifically labelled with deuterium in the aromatic ring can be prepared through the hydrogenolysis of tyrosine tetrazolyl ethers using D2 gas and a medium pressure catalytic hydrogenator.
