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143815-11-6

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143815-11-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143815-11-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,1 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143815-11:
(8*1)+(7*4)+(6*3)+(5*8)+(4*1)+(3*5)+(2*1)+(1*1)=116
116 % 10 = 6
So 143815-11-6 is a valid CAS Registry Number.

143815-11-6Relevant articles and documents

Synthesis of vicinal 2,3-dialkyl-6-hydroxybenzophenones by titanium tetrachloride catalyzed Fries rearrangement of 3,4-dialkylphenyl benzoates

Martin,Demerseman

, p. 738 - 740 (2007/10/02)

The titanium(IV) chloride-mediated Fries rearrangement of 3,4-dialkylphenyl benzoates 1 yields mainly 4,5-dialkyl-2-hydroxybenzophenones 2 in high yield. We describe here a new access to the unknown vicinal 2,3-dialkyl-6-hydroxybenzophenones 3, which is b

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