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109408-34-6

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109408-34-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109408-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,0 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109408-34:
(8*1)+(7*0)+(6*9)+(5*4)+(4*0)+(3*8)+(2*3)+(1*4)=116
116 % 10 = 6
So 109408-34-6 is a valid CAS Registry Number.

109408-34-6Downstream Products

109408-34-6Relevant articles and documents

Microwave irradiation and diisopropylcarbodiimide (DIC)/7-aza-1- hydroxybenzotriazole (HOAt): A potent combination for synthesis of variuos hydrazide from N-protected amino acid and hydrazine

Albatal, Mona,Ghani, Mohamad Abdul,El-Faham, Ayman,Al-Hazimi, Hassan M.,Hammud, Hassan H.

experimental part, p. 419 - 428 (2010/11/04)

Here we describe a fast and rapid technique for preparation of amino acid hydrazide as well as peptide hydrazide derivatives using diisopropylcarbodiimide (DIC)/1-hydroxybenzotriazoles (HOXt) (X = A or B) under microwave irradiation employing a multimode reactor (Synthos 3000 Aton Paar, GmbH, 1400 W maximum magnetron). A comparison between conventional and microwave irradiation was described. The microwave methodology is rapid, convenient, proceeds under mild conditions. Diisopropylcarbodiimide (DIC)/7-aza-1-hydroxybenzotriazole (HOAt) always gave much better yield (95 - 98%) and purity than diisopropylcarbodiimide (DIC)/1-hydroxybenzotriazole (HOBt).

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