138638-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138638-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,3 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138638-98:
(8*1)+(7*3)+(6*8)+(5*6)+(4*3)+(3*8)+(2*9)+(1*8)=169
169 % 10 = 9
So 138638-98-9 is a valid CAS Registry Number.
138638-98-9Relevant academic research and scientific papers
A one-step C-linked disaccharide synthesis from carbohydrate allylsilanes and tri-O-acetyl-D-glucal
De Raadt,Stutz
, p. 101 - 115 (2007/10/02)
The reaction of protected glucuronic esters 2 and 7, as well as D-glucuronolactone derivative 11, with (trimethylsilyl)methylmagnesium chloride in ether led to the corresponding stable bis-silyl adducts 3, 8, and 12, respectively. In Peterson-type reactio
