107672-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107672-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,6,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 107672-34:
(8*1)+(7*0)+(6*7)+(5*6)+(4*7)+(3*2)+(2*3)+(1*4)=124
124 % 10 = 4
So 107672-34-4 is a valid CAS Registry Number.
107672-34-4Relevant articles and documents
A NOVEL AND STEREOSELECTIVE SYNTHESIS OF (+/-)-CEPHALOTAXINE AND ITS ANALOGUE
Yasuda, Shingo,Yamada, Toru,Hanaoka, Miyoji
, p. 2023 - 2026 (1986)
Cephalotaxine (1) and its analogue (3) were stereoselectively synthesized from proline via the pyrrolobenzazepine (4) through Claisen rearrangement, cationic cyclization, and regio- and stereo-selective hydroxylation.