141037-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141037-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,0,3 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 141037-59:
(8*1)+(7*4)+(6*1)+(5*0)+(4*3)+(3*7)+(2*5)+(1*9)=94
94 % 10 = 4
So 141037-59-4 is a valid CAS Registry Number.
141037-59-4Relevant articles and documents
A New Rearrangement: Conversion of a Diepoxycyclohexane into a Dihydropyrancarbaldehyde
Moss, Gerard P.,Ooi, Cheng Keat
, p. 342 - 343 (1992)
Treatment of 2,7,7-trimethyl-3,8-dioxotricyclo2,4>octane 5 and derivatives with BF3 gave the corresponding 4,4,5-trimethyl-3,4-dihydro-2H-pyran-2-carbaldehyde 7 and traces only of 3,5,5-trimethyl-7-oxabicycloheptan-2-one 8.