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66605-19-4

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66605-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66605-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,6,0 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66605-19:
(7*6)+(6*6)+(5*6)+(4*0)+(3*5)+(2*1)+(1*9)=134
134 % 10 = 4
So 66605-19-4 is a valid CAS Registry Number.

66605-19-4Relevant articles and documents

Cleavage of 4,6- O -benzylidene acetal using sodium hydrogen sulfate monohydrate

Michigami, Kyosuke,Terauchi, Manami,Hayashi, Masahiko

, p. 1519 - 1523 (2013)

The use of protecting groups is an important protocol in carbohydrate synthesis. Among protecting groups, benzylidene acetals are generally more stable than other acetals; therefore, strong conditions are often required for deprotection. We report the deprotection of 4,6-O-benzylidene derivatives using sodium hydrogen sulfate monohydrate under mild conditions. Georg Thieme Verlag Stuttgart New York.

Tetrafluoroboric acid, an efficient catalyst in carbohydrate protection and deprotection reactions

Albert, Rainer,Dax, Karl,Pleschko, Ruth,Stutz, Arnold E.

, p. 282 - 290 (2007/10/02)

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