213599-27-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213599-27-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,5,9 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 213599-27:
(8*2)+(7*1)+(6*3)+(5*5)+(4*9)+(3*9)+(2*2)+(1*7)=140
140 % 10 = 0
So 213599-27-0 is a valid CAS Registry Number.
213599-27-0Relevant articles and documents
Synthesis of enantiopure estrone via a double heck reaction
Tietze, Lutz F.,N?bel, Thomas,Spescha, Maurus
, p. 8971 - 8977 (1998)
A novel efficient catalytic approach to steroids by a double Heck reaction of the vinyl bromides 2 and the CD-building block 3 is presented. The new estrogen analogues 1a and 1b are formed via 23a and 23b in a highly regio- and stereoselective manner in g
