861899-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861899-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,8,9 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 861899-25:
(8*8)+(7*6)+(6*1)+(5*8)+(4*9)+(3*9)+(2*2)+(1*5)=224
224 % 10 = 4
So 861899-25-4 is a valid CAS Registry Number.
861899-25-4Relevant articles and documents
A short approach to the bicyclo[4.3.0]nonane fragment of stawamycin
Dias, Luiz C.,Melgar, Gliseida Z.,Jardim, Luciana S. A.
, p. 4427 - 4431 (2007/10/03)
The bicyclo[4.3.0]nonane (C11-C21) fragment of stawamycin has been prepared by a sequence involving 11 steps (10% overall yield) from methyl (R)-(-)-3-hydroxy-2-methylpropionate. Key steps are a Pd-catalysed Stille coupling reaction
