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4103-77-9

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4103-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4103-77-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,0 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4103-77:
(6*4)+(5*1)+(4*0)+(3*3)+(2*7)+(1*7)=59
59 % 10 = 9
So 4103-77-9 is a valid CAS Registry Number.

4103-77-9Relevant articles and documents

Benzylic C-H trifluoromethylation of phenol derivatives

Egami, Hiromichi,Ide, Takafumi,Kawato, Yuji,Hamashima, Yoshitaka

, p. 16675 - 16678 (2015/11/25)

Phenol derivatives were trifluoromethylated using copper/Togni reagent. In dimethylformamide, the benzylic C-H bond at the para position of the hydroxyl group was selectively substituted with a CF3 group. In contrast, aromatic C-H trifluorometh

REACTIVITY OF DIALKYLPHENOLS IN REACTION WITH ACETALS

Starikova, O. F.,Gurvich, Ya. A.,Styskin, E. L.,Kumok, S. T.

, p. 553 - 555 (2007/10/02)

In reaction with 2,4-dialkylphenols under the conditions of acid catalysis formaldehyde dialkyl acetals give high yields of the corresponding substituted methylenediphenols.The reaction can be used for the synthesis of compounds which are effective antioxidants.

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