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31111-45-2

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31111-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31111-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,1 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31111-45:
(7*3)+(6*1)+(5*1)+(4*1)+(3*1)+(2*4)+(1*5)=52
52 % 10 = 2
So 31111-45-2 is a valid CAS Registry Number.

31111-45-2Downstream Products

31111-45-2Relevant articles and documents

Interaction of acetonitrile with trifluoromethanesulfonic acid: Unexpected formation of a wide variety of structures

Salnikov, George E.,Genaev, Alexander M.,Vasiliev, Vladimir G.,Shubin, Vyacheslav G.

supporting information; experimental part, p. 2282 - 2288 (2012/04/10)

Interaction of acetonitrile with trifluoromethanesulfonic acid has been studied by multinuclear NMR and ESI-MS. It has been found that the interaction results in formation of a great variety of different cations and neutral compounds which is controlled by the ratio of CH3CN to TfOH. In the presence of an excess of the acid (molar ratio 1:8-14) diprotonated N-acetylacetamidine 1 is formed as the major product, which eventually transforms into protonated acetamidine 3 and acetic acid 4. At molar ratio of (1:1-2) diprotonated 2,4-dimethyl-6-methylidene-3H-1,3,5-triazine 12, tautomer of the diprotonated trimethyl-s-triazine 11, becomes the main product at an early stage of the reaction and diprotonated 1-(dimethyl-1,3,5-triazin-2-yl) prop-1-en-2-ol 15 at a later stage. In the case of a large excess of acetonitrile (4-20:1) trication 17 is formed as a result of the interaction between 11 and 12 along with some oligomers [(CH3CN) 3]n (n = 4-12). The Royal Society of Chemistry 2012.

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