65399-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65399-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,3,9 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 65399-15:
(7*6)+(6*5)+(5*3)+(4*9)+(3*9)+(2*1)+(1*5)=157
157 % 10 = 7
So 65399-15-7 is a valid CAS Registry Number.
65399-15-7Relevant articles and documents
REACTION OF 3a,4-DIHYDROPHTHALIDES WITH ACETYLENIC DIENOPHILES
Noguchi, Michihiko,Kakimoto, Shinji,Kajigaeshi, Shoji
, p. 665 - 668 (2007/10/02)
The tricycloocta-2,5-diene-4,7-carbolactones, the initially-formed Diels-Alder adducts from 3a,4-dihydrophthalides and acetylenic dienophiles, were so strained that they underwent the retro-Diels-Alder reaction to afford the benzene derivatives in good yields.
