133941-60-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133941-60-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,4 and 1 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133941-60:
(8*1)+(7*3)+(6*3)+(5*9)+(4*4)+(3*1)+(2*6)+(1*0)=123
123 % 10 = 3
So 133941-60-3 is a valid CAS Registry Number.
133941-60-3Relevant articles and documents
Synthesis of Derivatives of FK 506 and FR 900520: Modifications at the Binding Domain
Emmer, Gerhard,Weber-Roth, Sabine
, p. 5861 - 5874 (2007/10/02)
The synthesis of 9-deoxo-FK 506 (13a), 9-deoxo-FR 900520 (13b), 9-deoxo-10(R)-deoxy-FR900520 (14) and its 10(S) isomer 15 is described.Radical deoxygenation/elimination of the 9-dihydro-9,10-thiocarbonates 5a,5b,6a and 6b gave the 9,10 unsaturated compoun
