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37611-23-7

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37611-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37611-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,6,1 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 37611-23:
(7*3)+(6*7)+(5*6)+(4*1)+(3*1)+(2*2)+(1*3)=107
107 % 10 = 7
So 37611-23-7 is a valid CAS Registry Number.

37611-23-7Relevant articles and documents

Synthesis of α-Amidoketones through the Cascade Reaction of Carboxylic Acids with Vinyl Azides under Catalyst-Free Conditions

Gao, Cai,Zhou, Qianting,Yang, Li,Zhang, Xinying,Fan, Xuesen

, p. 13710 - 13720 (2020/11/13)

An efficient synthesis of α-amidoketone derivatives through the cascade reactions of carboxylic acids with vinyl azides is presented. Compared with literature protocols, notable features of this new method include catalyst-free conditions, broad substrate scope, good tolerance of a wide range of functional groups, and high efficiency. In addition, the synthetic potential of this method as a tool for late-stage modification was convincingly manifested by its application in the structural elaborations of a number of carboxylic acid drug molecules.

Fischer synthesis of 3-(N-acylamino)-2-phenylindoles

Przheval'Skii,Skvortsova,Magedov

, p. 1055 - 1061 (2007/10/03)

Phenylhydrazones were obtained by the reaction of phenylhydrazine with ω-(N-acylamino)-acetophenones and were converted into 3-(N-acylamino)indoles by the Fischer cyclizaction.

Water-binding solid scintillators: Synthesis, emission properties, and tests in 3H and 14C counting

Meyer, Hans-Joachim,Wolff, Thomas

, p. 2809 - 2817 (2007/10/03)

Spectral and time-resolved fluorescence properties as well as relative fluorescence quantum yields of carbodiimide derivatives of 2,5-diphenyloxazole (PPO) (prepared by H2S elimination from the corresponding thioureas), of some intermediates in the preparation, and of several other PPO derivatives were investigated in solution and in the solid state to test their suitability as solid scintillators. The carbodiimides reacted slowly with water under acidic conditions to yield ureas. These systems were compared with solid mixtures of other PPO derivatives with sodium sulfate as a drying agent, as chemically water-binding solid scintillators in 3H and 14C counting. Both the chemically and the absorptive water-binding scintillators proved capable of counting 3H and 14C decay, and open a way to the counting of aqueous samples by solid scintillators without a drying step.

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