133039-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133039-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,0,3 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 133039-09:
(8*1)+(7*3)+(6*3)+(5*0)+(4*3)+(3*9)+(2*0)+(1*9)=95
95 % 10 = 5
So 133039-09-5 is a valid CAS Registry Number.
133039-09-5Relevant articles and documents
A new, short and efficient synthesis of both enantiomers of carnitine
Bellamy,Bondoux,Dodey
, p. 7323 - 7326 (2007/10/02)
A short, efficient and enantioselective synthesis of both (R) and (S) enantiomers of carnitine is reported starting with (R) or (S) malic acid and involving a chemoselective reduction step.