Cas 157872-81-6,1-(1,3-Dioxabutyl)-2-(4,6-dioxaheptyl)benzol

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Check Digit Verification of cas no

The CAS Registry Mumber 157872-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,7 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157872-81:
(8*1)+(7*5)+(6*7)+(5*8)+(4*7)+(3*2)+(2*8)+(1*1)=176
176 % 10 = 6
So 157872-81-6 is a valid CAS Registry Number.

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157872-81-6Relevant articles and documents

Effiziente und selektive Farbgebung cryptandartiger Spirobenzopyran-Kronenether durch Komplexierung mit Erdalkalimetall-Kationen

Inouye, Masahiko,Noguchi, Yoshiyuki,Isagawa, Kakuzo

, p. 1226 - 1228 (2007/10/02)

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157872-81-6