1271726-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1271726-70-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,1,7,2 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1271726-70:
(9*1)+(8*2)+(7*7)+(6*1)+(5*7)+(4*2)+(3*6)+(2*7)+(1*0)=155
155 % 10 = 5
So 1271726-70-5 is a valid CAS Registry Number.
1271726-70-5Relevant articles and documents
Total synthesis of (-)-diospongin A and (+)-cryptofolione via asymmetric aldol reaction
Kumar, Rayala Naveen,Meshram
, p. 1003 - 1007 (2011/03/21)
Stereoselective synthesis of two distinctive pyranone skeletons diospongin A and cryptofolione has been described based on an asymmetric aldol reaction starting from Chan's diene. The synthetic strategy involves the enantioselective Mukaiyama aldol, diast