858346-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858346-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,3,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 858346-40:
(8*8)+(7*5)+(6*8)+(5*3)+(4*4)+(3*6)+(2*4)+(1*0)=204
204 % 10 = 4
So 858346-40-4 is a valid CAS Registry Number.
858346-40-4Relevant academic research and scientific papers
Total synthesis of brevetoxin B
Kadota, Isao,Takamura, Hiroyoshi,Nishii, Hiroki,Yamamoto, Yoshinori
, p. 9246 - 9250 (2007/10/03)
The convergent total synthesis of brevetoxin B (1) has been achieved. The intramolecular allylation of the O,S-acetal 20, prepared from the α-chlorosulfide 17 and the alcohol 5, was carried out using AgOTf as a Lewis acid to give the diene 21, predominant
