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82840-53-7

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82840-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82840-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,4 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 82840-53:
(7*8)+(6*2)+(5*8)+(4*4)+(3*0)+(2*5)+(1*3)=137
137 % 10 = 7
So 82840-53-7 is a valid CAS Registry Number.

82840-53-7Downstream Products

82840-53-7Relevant articles and documents

PREPARATION OF SEVERAL NEW Ni- OR Pd-CONTAINING CYCLIC AMIDE AND ESTERS, (PR3)nNi(CH2CH2CH2COZ) (Z=NH, O) AND PCy3Pd(CH2CH2CH2COO), AND RING CONTRACTION OF THE SIX-MEMBERED Ni-CONTAINING CYCLIC ESTER TO ITS FIVE-MEMBERED ISOMER

Sano, Kenji,Yamamoto, Takakazu,Yamamoto, Akio

, p. 695 - 698 (2007/10/02)

New metallacyclic amide and esters (PCy3Ni(CH2CH2CH2CONH), (PR3)nNi(CH2CH2CH2COO), PCy3Pd(CH2CH2CH2COO) ) have been prepared by reactions of zero-valent nickel and palladium complexes with unsaturated amide and acid.The 6-membered Ni-containing cyclic ester undergoes a ring contraction reaction to a 5-membered isomer.

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