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133745-04-7

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133745-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133745-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,4 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133745-04:
(8*1)+(7*3)+(6*3)+(5*7)+(4*4)+(3*5)+(2*0)+(1*4)=117
117 % 10 = 7
So 133745-04-7 is a valid CAS Registry Number.

133745-04-7Relevant articles and documents

Phosphasilene synthesis and reactivity: an improved route to 1-(2,4,6-tri-tert-butylphenyl)-2-tert-butyl-2-(2,4,6-tri-isopropylphenyl)phosphasilene

Winkel, Yvar van den,Bastiaans, Harold M. M.,Bickelhaupt, Friedrich

, p. 183 - 194 (2007/10/02)

A new route was developed for the synthesis of a specific phosphasilene, 1-(2,4,6-tri-tert-butylphenyl)-2-tert-butyl-2-(2,4,6-tri-isopropylphenyl)phosphasilene (1e).Several novel phosphasilenes (1) with various substituents on phosphorus have been synthesized.The influence of the substituents on the phosphorus and silicon chemical shifts and the stability of the phosphasilenes is analyzed.The chemical reactivity of 1e has been investigated.

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