91193-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91193-25-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,9 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91193-25:
(7*9)+(6*1)+(5*1)+(4*9)+(3*3)+(2*2)+(1*5)=128
128 % 10 = 8
So 91193-25-8 is a valid CAS Registry Number.
91193-25-8Relevant articles and documents
Preparation of functionalized α-chloromethyl ketones using Rieke zinc
Rieke,Brown,Wu
, p. 3923 - 3930 (1995)
The cross-coupling reaction of highly functionalized organozinc reagents with chloroacetyl chloride mediated by copper allows for the easy preparation of functionalized α-chloromethyl ketones in excellent yields.