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77172-38-4

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77172-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77172-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,7 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77172-38:
(7*7)+(6*7)+(5*1)+(4*7)+(3*2)+(2*3)+(1*8)=144
144 % 10 = 4
So 77172-38-4 is a valid CAS Registry Number.

77172-38-4Downstream Products

77172-38-4Relevant articles and documents

Acylation of Dibasic Compounds Containing Amino Amidine and Aminoguanidine Functions

Barker, Peter L.,Gendler, Paul L.,Rapoport, Henry

, p. 2455 - 2465 (2007/10/02)

The site of acylation in difunctional compounds containing an amine and either an amidine or guanidine can be determined from the ultraviolet absorption spectrum of the acylated product.If the amidine or guanidine has been acylated, the product possesses a chromophore that is pH dependent, whereas if an amide was formed, the chromophore is independent of pH.

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