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57658-91-0

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57658-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57658-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,5 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57658-91:
(7*5)+(6*7)+(5*6)+(4*5)+(3*8)+(2*9)+(1*1)=170
170 % 10 = 0
So 57658-91-0 is a valid CAS Registry Number.

57658-91-0Downstream Products

57658-91-0Relevant articles and documents

METHOD FOR PREPARING SAMPLE FOR CRYSTALLINE STRUCTURE ANALYSIS, FOR STRUCTURE ANALYSIS OF HYDROPHILIC ORGANIC COMPOUND HAVING POLAR GROUP BY CRYSTALLINE SPONGE METHOD

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Paragraph 0225, (2019/12/25)

PROBLEM TO BE SOLVED: To provide a sample preparing method for analysis of a molecular structure of a hydrophilic organic compound by crystalline sponge method. SOLUTION: A hydrophobic substituent is introduced into a polar group of a hydrophilic organic

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