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89604-36-4

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89604-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89604-36-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,0 and 4 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 89604-36:
(7*8)+(6*9)+(5*6)+(4*0)+(3*4)+(2*3)+(1*6)=164
164 % 10 = 4
So 89604-36-4 is a valid CAS Registry Number.

89604-36-4Relevant articles and documents

Lithiations directed by carboxylic acid, fluorine and chlorine: The regioselective synthesis of polysubstituted benzoic acids and acetophenones

Moyroud, Joel,Guesnet, Jean-Luc,Bennetau, Bernard,Mortier, Jacques

, p. 133 - 141 (2007/10/03)

Lithiation/electrophilic quenching of ortho-lithiated benzoates allows the totally regiocontrolled synthesis of a wide range of 2,3-, 2,3,4-, and 2,3,4,5-polysubstituted benzoic acids and related acetophenones. Elsevier,.

ORTHO METALATION DIRECTED BY α-AMINO ALKOXIDES. AN IMPROVED SYNTHESIS OF ORTHO-SUBSTITUTED ARYL KETONES

Comins, Daniel L.,Brown, Jack D.

, p. 5465 - 5468 (2007/10/02)

Ortho-substituted aryl ketones are prepared from N--N-methylbenzamides via ortho lithiation of intermediate α-amino alkoxides, formed in situ by addition of RLi.An ortho lithiation of N--N-methylbenzamide is also described.

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