804551-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 804551-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,4,5,5 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 804551-90:
(8*8)+(7*0)+(6*4)+(5*5)+(4*5)+(3*1)+(2*9)+(1*0)=154
154 % 10 = 4
So 804551-90-4 is a valid CAS Registry Number.
804551-90-4Relevant articles and documents
Total synthesis of callipeltoside A
Huang, Hongbing,Panek, James S.
, p. 4383 - 4385 (2007/10/03)
(Chemical Equation Presented) A convergent total synthesis of cytotoxic marine macrolide callipeltoside A is described. The synthesis highlights two stereoselective [4 + 2] annulations for the preparation of associated pyran rings.
