501902-07-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 501902-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,9,0 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 501902-07:
(8*5)+(7*0)+(6*1)+(5*9)+(4*0)+(3*2)+(2*0)+(1*7)=104
104 % 10 = 4
So 501902-07-4 is a valid CAS Registry Number.
501902-07-4Relevant articles and documents
An efficient synthesis of δ-amino[3-13C]levulinic acid
Kajiwara, Yasuhiro,Scott, A.Ian
, p. 8795 - 8796 (2007/10/03)
A new convenient synthesis of [3-13C]ALA, using 13C-methyl phenyl sulfone, with 62% overall yield in six steps, is described. The overall yield of this synthesis exceeds that of previously reported methods.