13309-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13309-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,0 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13309-99:
(7*1)+(6*3)+(5*3)+(4*0)+(3*9)+(2*9)+(1*9)=94
94 % 10 = 4
So 13309-99-4 is a valid CAS Registry Number.
13309-99-4Relevant articles and documents
CONVENIENT PREPARATION OF TRANS-1,3-DIOXADECALIN VIA THE PRINS REACTION
Bailey, William F.,Rivera, Alberto D.,Zarcone, Lyn M. J.
, p. 1769 - 1772 (2007/10/02)
The acid catalyzed condensation of cyclohexene with aqueous formaldehyde can be controlled on a preparatively useful scale to give a 60-80percent yield of trans-1,3-dioxadecalin.