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132128-04-2

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132128-04-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132128-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,1,2 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 132128-04:
(8*1)+(7*3)+(6*2)+(5*1)+(4*2)+(3*8)+(2*0)+(1*4)=82
82 % 10 = 2
So 132128-04-2 is a valid CAS Registry Number.

132128-04-2Downstream Products

132128-04-2Relevant articles and documents

Chromogenic thiol indicators based on an isobenzothiazolone ring system

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, (2008/06/13)

Newly synthesized chromogenic thiol-indicating benzoisthiazolone derivatives having the structure: STR1 where R1, R2 and R3 are as defined in the specification, are useful in the detection of thiols, particularly in an aqueous system. This process comprises contacting the aqueous system with a chromogenic thiol-indicating benzoisothiazolone derivative as described herein. Chromophoric changes due to thiol-mediated reduction of the benzothiazolone derivative then occur. Such changes can be in a solution or on an indicator surface in contact or having been in contact with the aqueous system. The chromophoric changes, due to a bathochromic shift in characteristics light absorption upon reduction of the benzoisothiazolone derivative, are proportional to the amount or rate of appearance of thiols in the aqueous system.

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