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443890-57-1

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443890-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 443890-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,8,9 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 443890-57:
(8*4)+(7*4)+(6*3)+(5*8)+(4*9)+(3*0)+(2*5)+(1*7)=171
171 % 10 = 1
So 443890-57-1 is a valid CAS Registry Number.

443890-57-1Downstream Products

443890-57-1Relevant articles and documents

Gelation behavior of 2H-Chromene N-acylamino acid conjugates

Katritzky, Alan R.,Sakhuja, Rajeev,Khelashvili, Levan,Shanab, Karem

experimental part, p. 3062 - 3065 (2009/08/08)

2H-Chromene-based conjugates of N-acyl-1,Ω-amino acids (5, 9a-f, 14a-f) of natural amino acids (10a,b) and of dipeptide (10c) are prepared (60-97%) by N-acylbenzotriazole methodology in aqueous media at 20 °C. Gelation properties of the corresponding sodi

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