245724-19-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 245724-19-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,5,7,2 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 245724-19:
(8*2)+(7*4)+(6*5)+(5*7)+(4*2)+(3*4)+(2*1)+(1*9)=140
140 % 10 = 0
So 245724-19-0 is a valid CAS Registry Number.
245724-19-0Relevant articles and documents
A concise total synthesis of (+/-)-bakkenolide A by means of an intramolecular Diels-Alder reaction.
Back,Payne
, p. 663 - 665 (1999)
(+/-)-Bakkenolide A was prepared in five steps from ethyl 4-benzyloxyacetoacetate by sequential alkylations with tiglyl bromide nd cis-5-bromo-1,3-pentadiene, followed by an intramolecular Diels-Alder reaction as the key step. The known 7-epibakkenolide A