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414871-77-5

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414871-77-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 414871-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,4,8,7 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 414871-77:
(8*4)+(7*1)+(6*4)+(5*8)+(4*7)+(3*1)+(2*7)+(1*7)=155
155 % 10 = 5
So 414871-77-5 is a valid CAS Registry Number.

414871-77-5Relevant articles and documents

Process for preparation of allyl sulfone derivatives and intermediates for the preparation

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Page 8, (2010/02/06)

The present invention relates to a process for producing an allyl sulfone derivative represented by the formula (3): wherein Ar is an optionally substituted aryl group, and the corrugated line means either one of E/Z geometrical isomers, or a mixture thereof, which is an intermediate for producing vitamin A, which process is characterized by reacting an aryl sulfinic acid or a salt thereof represented by the formula (2): ArSO2M (2) wherein Ar is as defined above, and M is hydrogen atom, sodium atom or potassium atom, with an allyl halide derivative represented by the formula (1): wherein X is a halogen atom, and Ar and the corrugated line are as defined above.

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