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168832-71-1

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168832-71-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 168832-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,8,3 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 168832-71:
(8*1)+(7*6)+(6*8)+(5*8)+(4*3)+(3*2)+(2*7)+(1*1)=171
171 % 10 = 1
So 168832-71-1 is a valid CAS Registry Number.

168832-71-1Downstream Products

168832-71-1Relevant articles and documents

Phthalide compound and a near infrared absorber and a recording material each comprising the same compound

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, (2008/06/13)

A phthalide compound of general formula (I) and a near infrared absorber and a recording material each utilizing the phthalide compound are disclosed. STR1 wherein ring A represents a substituent group of the following formula STR2 where the other substituents are as defined in the disclosure. The near infrared absorber and the recorded image on the recording material absorb strongly the near infrared region with no appreciable absorption in the visible region of the spectrum. The near infrared absorber is colorless or pale in color and yet highly capable of absorbing near infrared radiation. The recorded image on the recording material can hardly be read with the eye but can be read with the OCR. Moreover, the effect on the developed shade of any concomitant color former in a recording material is minimal.

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