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883747-51-1

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883747-51-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 883747-51-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,3,7,4 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 883747-51:
(8*8)+(7*8)+(6*3)+(5*7)+(4*4)+(3*7)+(2*5)+(1*1)=221
221 % 10 = 1
So 883747-51-1 is a valid CAS Registry Number.

883747-51-1Downstream Products

883747-51-1Relevant articles and documents

MANUFACTURING METHOD OF FLUORINE-CONTAINING AROMATIC DIAMINE

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Paragraph 0157-0164, (2020/02/10)

PROBLEM TO BE SOLVED: To provide a production method for obtaining a fluorine-containing aromatic diamine having a hexafluoroisopropanol group(s) (-C(CF3)2OH) bound to an aromatic ring(s) in the aromatic diamine with good selectivity and yield, while suppressing by-production of imines. SOLUTION: There is provided a production method of a fluorine-containing aromatic diamine for obtaining a fluorine-containing aromatic diamine having a hexafluoroisopropanol group(s) bound to an aromatic ring(s), the production method comprising reacting an aromatic diamine and hexafluoroacetone in 1,1,1,3,3,3-hexafluoro-2-propanol. The aromatic diamine and the fluorine-containing aromatic diamine may be both aromatic polycyclic compounds or both aromatic monocyclic compounds. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPO&INPIT

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