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155887-14-2

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155887-14-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155887-14-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,8 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155887-14:
(8*1)+(7*5)+(6*5)+(5*8)+(4*8)+(3*7)+(2*1)+(1*4)=172
172 % 10 = 2
So 155887-14-2 is a valid CAS Registry Number.

155887-14-2Upstream product

155887-14-2Relevant articles and documents

Process for producing ioversol

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, (2008/06/13)

The present invention discloses a new process for producing ioversol (marketed as OPTIRAY) comprising:(a) reacting 5-amino-N,N′-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisopthalamide with chloroacetyl chloride in a polar aprotic solvent or combinations there

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