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189683-17-8

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189683-17-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189683-17-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,6,8 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189683-17:
(8*1)+(7*8)+(6*9)+(5*6)+(4*8)+(3*3)+(2*1)+(1*7)=198
198 % 10 = 8
So 189683-17-8 is a valid CAS Registry Number.

189683-17-8Downstream Products

189683-17-8Relevant articles and documents

Use of cyclic sulfamidates derived from D-allosamine in nucleophilic displacements: Scope and limitations

Aguilera, Begona,Fernandez-Mayoralas, Alfonso,Jaramillo, Carlos

, p. 5863 - 5876 (2007/10/03)

A cyclic 2,3-sulfamidate derived from N-acetyl-D-allosamine has been treated with a variety of S-. N-, O-. and C-nucleophiles, leading to nucleophilic displacement at C-3, elimination, or deacetylation reactions depending on the type of nucleophile used. Nucleophilic displacement is achieved with thio-nucleophiles and NaN3. allowing the preparation of 3-thio- or 3-azido glucosamine derivatives difficult to obtain by use of sulfonates.

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