110525-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 110525-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,5,2 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 110525-55:
(8*1)+(7*1)+(6*0)+(5*5)+(4*2)+(3*5)+(2*5)+(1*5)=78
78 % 10 = 8
So 110525-55-8 is a valid CAS Registry Number.
110525-55-8Relevant articles and documents
Novel Parham-type Cycloacylations of 1H-Pyrazole-1-alkanoic Acids
Larsen, Scott D.
, p. 1013 - 1014 (2007/10/03)
Exposure of 1H-pyrazole-1-alkanoic acids to two equivalents of n-butyllithium affords the corresponding cyclic ketones via a Parham-type cyclization process. Although yields are modest, this procedure represents a simple and direct intramolecular acylation of a non-nucleophilic pyrazole carbon.
