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848391-87-7

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848391-87-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 848391-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,8,3,9 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 848391-87:
(8*8)+(7*4)+(6*8)+(5*3)+(4*9)+(3*1)+(2*8)+(1*7)=217
217 % 10 = 7
So 848391-87-7 is a valid CAS Registry Number.

848391-87-7Relevant articles and documents

AROMATIC CARBOXYLIC ACID AND METHOD FOR SYNTHESIZING THE SAME

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Page/Page column 9, (2010/02/11)

PROBLEM TO BE SOLVED: To provide a new aromatic carboxylic acid useful as an intermediate raw material of a condensation polymer having a high heat resistance. SOLUTION: This aromatic carboxylic acid is expressed by general formula (1) [wherein, Z is a divalent group expressed by formula (2) or (3) (wherein, X is a halogen)]. The method for producing the aromatic carboxylic acid expressed by general formula (1) and obtained by a halogenation treatment is also provided.

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