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25642-87-9

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25642-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25642-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,6,4 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 25642-87:
(7*2)+(6*5)+(5*6)+(4*4)+(3*2)+(2*8)+(1*7)=119
119 % 10 = 9
So 25642-87-9 is a valid CAS Registry Number.

25642-87-9Downstream Products

25642-87-9Relevant articles and documents

Anodic oxidation of bisamides from diaminoalkanes by constant current electrolysis

Golub, Tatiana,Becker, James Y.

, p. 861 - 868 (2018)

In general, bisamides derived from diamines and involving 3 and 4 methylene groups as spacers between the two amide functionalities behave similar to monoamides upon anodic oxidation in methanol/LiClO4 because both types undergo majorly mono- and dimethoxylations at the α-position to the N atom. However, in cases where the spacer contains two methylene groups only the anodic process leads mostly to CH2-CH2 bond cleavage to afford products of type RCONHCH2OCH3. Moreover, upon replacing LiClO4 with Et4NBF4 an additional fragmentation type of product was generated from the latter amides, namely RCONHCHO. Also, the anodic process was found to be more efficient with C felt as the anode, and in a mixture of 1:1 methanol/acetonitrile co-solvents.

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