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4222-38-2

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4222-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4222-38-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,2 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4222-38:
(6*4)+(5*2)+(4*2)+(3*2)+(2*3)+(1*8)=62
62 % 10 = 2
So 4222-38-2 is a valid CAS Registry Number.

4222-38-2Upstream product

4222-38-2Relevant articles and documents

Production of methylphenyltrisiloxane

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, (2008/06/13)

A process of producing a methylphenyltrisiloxane having the following general formula: STR1 wherein R1 and R2 may be the same or different and are each a methyl or phenyl group, the process comprising the step of reacting: (A) methyldiphenylsilanol, with (B) a silazane compound having a diorganosilazane unit having the following formula: STR2 wherein R1 and R2 are as defined above. According to the process, colorless and odorless methylphenyltrisiloxanes can be obtained easily, safely and economically, without any special deodorizing or decoloring step.

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