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138638-93-4

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138638-93-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138638-93-4 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 3 respectively.
Calculate Digit Verification of CAS Registry Number 138638-93:
(8*1)+(7*3)+(6*8)+(5*6)+(4*3)+(3*8)+(2*9)+(1*3)=164
164 % 10 = 4
So 138638-93-4 is a valid CAS Registry Number.

138638-93-4Relevant articles and documents

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

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