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73067-86-4

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73067-86-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73067-86-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,6 and 7 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 73067-86:
(7*7)+(6*3)+(5*0)+(4*6)+(3*7)+(2*8)+(1*6)=134
134 % 10 = 4
So 73067-86-4 is a valid CAS Registry Number.

73067-86-4Upstream product

73067-86-4Downstream Products

73067-86-4Relevant articles and documents

METHOD FOR PURIFYING N-ACYLAMINO ACID AMIDES

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, (2008/06/13)

Disclosed herein are a method of purifying an N-acylamino acid amide comprising adding water and a specific organic solvent to an N-acylamino acid amide, distillating azeotropically the water and the organic acid (with further water being added from time to time if necessary), whereby the N-acylamino acid amide gets precipitated in the form of granular solid excellent in separability as the organic solvent gets solvent-replaced by the water in the course of the azeotropic distillation, and separating the solid, and the method of purifying an N-acylamino acid amide when applied to an N-acylamino acid amide contaminated with impurities such as the alkylamine used as a starting material but remaining unreacted, further comprising subjecting the said N-acylamino acid amide to the acid extraction and/or the alkali extraction, whereby the inpurities are removed.

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