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1191256-33-3

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1191256-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1191256-33-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,1,2,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1191256-33:
(9*1)+(8*1)+(7*9)+(6*1)+(5*2)+(4*5)+(3*6)+(2*3)+(1*3)=143
143 % 10 = 3
So 1191256-33-3 is a valid CAS Registry Number.

1191256-33-3Downstream Products

1191256-33-3Relevant articles and documents

The reaction of terminal alkynes with PhI(OAc)2: a convenient procedure for the preparation of α-acyloxy ketones

Mo, Dong-Liang,Dai, Li-Xin,Hou, Xue-Long

supporting information; experimental part, p. 5578 - 5581 (2011/02/22)

Treatment of terminal alkynes with PhI(OAc)2 in different acids at 70 °C provided the corresponding α-acyloxy ketones in good to excellent yields. A plausible mechanism has been proposed based on the experimental results.

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