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54789-21-8

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54789-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54789-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,8 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 54789-21:
(7*5)+(6*4)+(5*7)+(4*8)+(3*9)+(2*2)+(1*1)=158
158 % 10 = 8
So 54789-21-8 is a valid CAS Registry Number.

54789-21-8Downstream Products

54789-21-8Relevant articles and documents

Arylpyran Pseudoacid Racemization: Rate Estimation and Structural Influences

Fung, Jonathan,Duong, Truc-Vi,Braceros, Keean C. A.,Brooks, Marilyn L.,Schloesser-Lingscheit, Katie,Tagawa, Tristen K. S.,Wilson, Johanna M.,Jones, Kevin K.,Valente, Edward J.

, p. 14 - 41 (2020/04/29)

Abstract: Arylpyran pseudoacids showed slow ring-opening to the oxocarboxylic acids, and fast ring-closure to the lactols (pseudoacids) in a process that amounts to racemization. Compounds studied were patterned on “Cooper’s Pseudoacid” [3-hydroxy-4,4-dim

Process for the preparation of substituted indanones

-

, (2008/06/13)

1-Indanones of the formula III or IIIa STR1 in which R1 to R7 are preferably hydrogen or alkyl, or adjacent radicals R1 to R4 form a ring, are obtained in a one-step reaction by reacting a compound I STR2 with a compound of the formula II STR3 in liquid hydrogen fluoride.

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