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172485-84-6

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172485-84-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172485-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,4,8 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 172485-84:
(8*1)+(7*7)+(6*2)+(5*4)+(4*8)+(3*5)+(2*8)+(1*4)=156
156 % 10 = 6
So 172485-84-6 is a valid CAS Registry Number.

172485-84-6Downstream Products

172485-84-6Relevant articles and documents

Amidation of carboxylic acids via the mixed carbonic carboxylic anhydrides and its application to synthesis of antidepressant (1S,2R)-tranylcypromine

Ezawa, Tetsuya,Kawashima, Yuya,Noguchi, Takuya,Jung, Seunghee,Imai, Nobuyuki

, p. 1690 - 1699 (2017/11/14)

Primary amidations of carboxylic acids 1 or 3 with NH4Cl in the presence of ClCO2Et and Et3N were developed to afford the corresponding primary amides in 22% to quantitative yields. Additionally, we have applied the amidation to the preparation of various amides containing hydroxamic acids and achieved the synthesis of (1S,2R)-tranylcypromine as an antidepressant medicine via Lossen rearrangement.

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