128669-78-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128669-78-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,6 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128669-78:
(8*1)+(7*2)+(6*8)+(5*6)+(4*6)+(3*9)+(2*7)+(1*8)=173
173 % 10 = 3
So 128669-78-3 is a valid CAS Registry Number.
128669-78-3Relevant articles and documents
New Entry to the Perhydrofurofuran Ring System
Kido, Fusao,Sinha, Subhash C.,Abiko, Toshiya,Watanabe, Masataka,Yoshikoshi, Akira
, p. 418 - 420 (2007/10/02)
Treatment of the α-diazomalonate (6) with Rh2(OAc)4 stereoselectively provided substituted valerolactones (7) and (7') via the sigmatropic rearrangement of a nine-membered cyclic allylsulphonium ylide; the rearrangement product was converted to 5-alk
