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690971-22-3

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690971-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690971-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,9,7 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 690971-22:
(8*6)+(7*9)+(6*0)+(5*9)+(4*7)+(3*1)+(2*2)+(1*2)=193
193 % 10 = 3
So 690971-22-3 is a valid CAS Registry Number.

690971-22-3Downstream Products

690971-22-3Relevant articles and documents

Propylphosphonic anhydride (T3P): an efficient reagent for the one-pot synthesis of 1,2,4-oxadiazoles, 1,3,4-oxadiazoles, and 1,3,4-thiadiazoles

Augustine, John Kallikat,Vairaperumal, Veeramani,Narasimhan, Sharmila,Alagarsamy, Padma,Radhakrishnan, Anbarasi

experimental part, p. 9989 - 9996 (2010/02/27)

Propylphosphonic anhydride (T3P) has been demonstrated to be an efficient and mild reagent for the one-pot synthesis of 1,2,4-oxadiazoles, 1,3,4-oxadiazoles, and 1,3,4-thiadiazoles from carboxylic acids.

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