81480-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81480-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,8 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81480-31:
(7*8)+(6*1)+(5*4)+(4*8)+(3*0)+(2*3)+(1*1)=121
121 % 10 = 1
So 81480-31-1 is a valid CAS Registry Number.
81480-31-1Relevant articles and documents
SYNTHETIC APPROACHES TOWARD VERRUCARIN A. CHIRAL SYNTHESIS OF (-)-VERRUCARINOLACTONE
Tomioka, Kiyoshi,Sato, Fuminori,Koga, Kenji
, p. 311 - 316 (2007/10/02)
(-)-Verrucarinolactone ((2S,3R)-2,5-dihydroxy-3-methylvaleric acid δ-lactone) (4) was synthesized stereoselectively from an optically active butyrolactone ((S)-γ-trityloxymethyl-γ-butyrolactone) (6) as a chiral synthon.
