98990-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98990-63-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,9 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98990-63:
(7*9)+(6*8)+(5*9)+(4*9)+(3*0)+(2*6)+(1*3)=207
207 % 10 = 7
So 98990-63-7 is a valid CAS Registry Number.
98990-63-7Relevant articles and documents
Preparation of 1-Arenesulfonyloxyalkyl Ketones
Hoffman, Robert V.
, p. 760 - 762 (1985)
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Efficient method for α-iodination of ketones
Lee, Jong Chan,Jin, Yong Suk
, p. 2769 - 2774 (2007/10/03)
α-Iodoketones are prepared in high yields from the initial reaction of various ketones with HNIB in CH3CN and subsequent treatment of potassium iodide or samarium(II) iodide.
