668461-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668461-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,4,6 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 668461-09:
(8*6)+(7*6)+(6*8)+(5*4)+(4*6)+(3*1)+(2*0)+(1*9)=194
194 % 10 = 4
So 668461-09-4 is a valid CAS Registry Number.
668461-09-4Relevant articles and documents
Total Synthesis of the Boron-Containing Ion Carrier Antibiotic Macrodiolide Tartrolon B
Mulzer, Johann,Berger, Markus
, p. 891 - 898 (2007/10/03)
The first total synthesis of the boron-containing macrodiolide antibiotic tartrolon B is reported in full detail. Two convergent approaches to the target compound are described, the first of which eventually failed, due to sensitive functionality. In the