309751-04-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 309751-04-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,7,5 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 309751-04:
(8*3)+(7*0)+(6*9)+(5*7)+(4*5)+(3*1)+(2*0)+(1*4)=140
140 % 10 = 0
So 309751-04-0 is a valid CAS Registry Number.
309751-04-0Relevant articles and documents
New total synthesis of (±)-herbertene, (±)-β-herbertenol and (±)-herbertenediol
Gupta,Pal,Roy,Mukherjee
, p. 7563 - 7566 (2000)
The total syntheses of the herbertane sesquiterpenes (±)-herbertene (1), (±)-β-herbertenol (2) and (±)-herbertenediol (5) have been successfully accomplished involving copper-catalysed conjugate addition of Grignard reagents to unsaturated compounds and α
