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903523-86-4

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903523-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 903523-86-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,5,2 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 903523-86:
(8*9)+(7*0)+(6*3)+(5*5)+(4*2)+(3*3)+(2*8)+(1*6)=154
154 % 10 = 4
So 903523-86-4 is a valid CAS Registry Number.

903523-86-4Downstream Products

903523-86-4Relevant articles and documents

Mild and nonracemizing conditions for Ullmann-type diaryl ether formation between aryl iodides and tyrosine derivatives

Cai, Qian,He, Gang,Ma, Dawei

, p. 5268 - 5273 (2007/10/03)

CuI/N,N-dimethylglycine-catalyzed coupling reaction of L-tyrosine derivatives and L-phenylalanine-derived iodides in the presence of Cs 2CO3 works at 90 °C to provide the corresponding diaryl ether. Partial racemization occurs when N

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