856675-73-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856675-73-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,6,7 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 856675-73:
(8*8)+(7*5)+(6*6)+(5*6)+(4*7)+(3*5)+(2*7)+(1*3)=225
225 % 10 = 5
So 856675-73-5 is a valid CAS Registry Number.
856675-73-5Relevant academic research and scientific papers
Total synthesis of the potent antitumor polyketide (-)-callystatin A
Dias, Luiz C.,Meira, Paulo R. R.
, p. 4762 - 4773 (2007/10/03)
A highly convergent and efficient total synthesis of the potent antitumor polyketide (-)-callystatin A is described. The synthesis required 19 steps from N-propionyl oxazolidinone 23 and produced the desired product in 3.5% overall yield.
