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70082-88-1

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70082-88-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70082-88-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,0,8 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70082-88:
(7*7)+(6*0)+(5*0)+(4*8)+(3*2)+(2*8)+(1*8)=111
111 % 10 = 1
So 70082-88-1 is a valid CAS Registry Number.

70082-88-1Downstream Products

70082-88-1Relevant articles and documents

Sulfonic acid esters

-

, (2008/06/13)

A novel process for the amidation or esterification which comprises reacting a compound having a carboxy group with a compound having an amino or imino group which can be acylated or with a compound having a hydroxy group in the presence of a sulfonic acid ester of the formula: wherein R1 is an organic group and R2 O-- is a residue of a strongly acidic N-hydroxy compound as a condensation agent, and a novel sulfonic acid ester useful as such a condensation agent and a process for the preparation thereof.

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