93831-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93831-65-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,3 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 93831-65:
(7*9)+(6*3)+(5*8)+(4*3)+(3*1)+(2*6)+(1*5)=153
153 % 10 = 3
So 93831-65-3 is a valid CAS Registry Number.
93831-65-3Relevant articles and documents
Naphthoquinone Mono- and Di-methide Lactones
Carey, John L.,Shand, Charles A.,Thomson, Ronald H.,Greenhalgh, Colin W.
, p. 1957 - 1962 (2007/10/02)
Monolactones which are derivatives of 7-hydroxynaphthopyran-2,6-dione are obtained by reaction of simple juglones with ethyl chloroformylacetate, and by condensation of mandelic acid with 2,6-dibromo-1,5-dihydroxynaphthalene.Dilactones are formed
