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948888-24-2

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948888-24-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 948888-24-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,8,8,8 and 8 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 948888-24:
(8*9)+(7*4)+(6*8)+(5*8)+(4*8)+(3*8)+(2*2)+(1*4)=252
252 % 10 = 2
So 948888-24-2 is a valid CAS Registry Number.

948888-24-2Upstream product

948888-24-2Relevant articles and documents

Processes for conversion of tyrosine to p-hydroxystyrene and p-acetoxystyrene

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Page/Page column 6-7, (2008/06/13)

Tyrosine was converted to p-hydroxystyrene in a two-step reaction without purification of individual intermediates. Conditions were determined for bromination of tyrosine in which reactive intermediates were formed. The mixture of these intermediates was used directly in a second step reaction to produce p-hydroxystyrene. The p-hydroxystyrene was further acetylated to produce p-acetoxystyrene in the second step reaction vessel.

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