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133269-79-1

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133269-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133269-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,2,6 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 133269-79:
(8*1)+(7*3)+(6*3)+(5*2)+(4*6)+(3*9)+(2*7)+(1*9)=131
131 % 10 = 1
So 133269-79-1 is a valid CAS Registry Number.

133269-79-1Relevant articles and documents

SYNTHESIS OF (-)-(4R,5R)- AND (+)-(4S,5S)-1-ALKYL-4-(4'-NITROPHENYL)-1-AZONIUM-3,7-DIOXABICYCLOOCTANE HALIDES

Zaitsev, V. P.,Purygin, P. P.,Sharipova, S. Kh.

, p. 1162 - 1163 (2007/10/02)

A preparative method has been proposed for the synthesis of bicyclic quaternary ammonium salts via sequential treatment of (-)-(1R,2R)- and (+)-(1S,2S)-1-(4'-nitrophenyl)-2-amino-1,3-propanediol with paraform followed by an alkyl halide.

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