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131545-66-9

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131545-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131545-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,4 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131545-66:
(8*1)+(7*3)+(6*1)+(5*5)+(4*4)+(3*5)+(2*6)+(1*6)=109
109 % 10 = 9
So 131545-66-9 is a valid CAS Registry Number.

131545-66-9Relevant academic research and scientific papers

Perfluorinated analogues of poison ivy allergens. Synthesis and skin tolerogenic activity in mice

Fraginals,Schaeffer,Stampf,Benezra

, p. 1024 - 1027 (1991)

3-(Tridecafluoroundecyl)catechol (8) and 3-(nonafluoropentadecyl)catechol (9), perfluorinated analogues of pentadecylcatechol (PDC), a constituent of poison ivy, have been synthesized. These compounds were nonsensitizers in mice. Compounds 8 and 9, however, were elicitors of allergic contact dermatitis in PDC-sensitized animals. Moreover, compound 9 exhibited tolerogenic properties to sensitization by poison ivy allergens, i.e. mice pretreated with perfluorinated compounds could not be sensitized to PDC.

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