221885-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221885-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,8,8 and 5 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 221885-27:
(8*2)+(7*2)+(6*1)+(5*8)+(4*8)+(3*5)+(2*2)+(1*7)=134
134 % 10 = 4
So 221885-27-4 is a valid CAS Registry Number.
221885-27-4Relevant articles and documents
Chemoenzymatic total synthesis of (+)-conagenin, a low-molecular-weight immunomodulator
Sano, Shigeki,Miwa, Toshio,Hayashi, Kazuhiko,Nozaki, Kazuo,Ozaki, Yohei,Nagao, Yoshimitsu
, p. 4029 - 4031 (2007/10/03)
Total synthesis of (+)-conagenin, a low-molecular-weight immunomodulator, was achieved based on enantioselective enzymatic reactions followed by chemoselective reductions.
