100058-92-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100058-92-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,0,5 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 100058-92:
(8*1)+(7*0)+(6*0)+(5*0)+(4*5)+(3*8)+(2*9)+(1*2)=72
72 % 10 = 2
So 100058-92-2 is a valid CAS Registry Number.
100058-92-2Relevant articles and documents
Syntheses and Transformations of 2,6-Epoxy-4H-3-benzoxocin-4-ones
Wuensch, Bernhard,Bauschke, Gerd
, p. 345 - 350 (2007/10/02)
Four variations for the preparation of 5 are described: acid-catalyzed cyclisation of the methoxy acid 4a, base-catalyzed lactonisation of the hydroxy ester 6b, DCC-mediated dehydration of the hydroxy acid 6a and PCC oxidation of the hemiacetals 17a and 1