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160956-28-5

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160956-28-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160956-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,9,5 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 160956-28:
(8*1)+(7*6)+(6*0)+(5*9)+(4*5)+(3*6)+(2*2)+(1*8)=145
145 % 10 = 5
So 160956-28-5 is a valid CAS Registry Number.

160956-28-5Relevant articles and documents

Method for synthesizing 1,3-diiminoisoindoline by using mixed solvent

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Paragraph 0021-0024; 0025-0028; 0029-0032, (2018/05/01)

The invention discloses a method for synthesizing 1,3-diiminoisoindoline by using a mixed solvent. By using a solvent method in a synthesis method of phthalic anhydride to synthesize the 1,3-diiminoisoindoline, the disadvantage of raw material shortage of a phthalonitrile method and defect of unstable reaction in a solid-phase melting method are overcome. The method has the advantages of simple and easily-controlled process and safe operation; in addition, the yield of the 1,3-diiminoisoindoline reaches 90 percent or above.

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