107174-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107174-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,1,7 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 107174-18:
(8*1)+(7*0)+(6*7)+(5*1)+(4*7)+(3*4)+(2*1)+(1*8)=105
105 % 10 = 5
So 107174-18-5 is a valid CAS Registry Number.
107174-18-5Relevant articles and documents
Synthesis of Deoxyfrenolicin and Nanaomycin A
Kraus, George A.,Molina, Maria Teresa,Walling, John A.
, p. 1273 - 1276 (2007/10/02)
Deoxyfrenolicin and nanaomycin A have been synthesized.Key steps in the synthesis include a phtalide annulation reaction to produce a naphthoquinone, a tandem Diels-Alder/retro-Claisen reaction to produce the carbon skeleton, and a stereoselective reduction of a hemiketal.