25350-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25350-22-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,3,5 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25350-22:
(7*2)+(6*5)+(5*3)+(4*5)+(3*0)+(2*2)+(1*2)=85
85 % 10 = 5
So 25350-22-5 is a valid CAS Registry Number.
InChI:InChI=1/C28H44N4O4/c1-9-19(6)24(32(7)8)28(35)31-23-25(18(4)5)36-21-12-10-20(11-13-21)14-15-29-26(33)22(16-17(2)3)30-27(23)34/h10-15,17-19,22-25H,9,16H2,1-8H3,(H,29,33)(H,30,34)(H,31,35)/b15-14-/t19-,22-,23-,24-,25-/m0/s1
25350-22-5Relevant articles and documents
The Total Synthesis of Frangulanine
Schmidt, Ulrich,Zaeh, Matthias,Lieberknecht, Albrecht
, p. 1002 - 1004 (1991)
The reported preparation of the p-ansa compound frangulanine, previously isolated from Rhamnus frangula L., also constitutes the first total synthesis of a fourteen-membered cyclopeptide alkaloid.