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1221252-26-1

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1221252-26-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1221252-26-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,2,5 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1221252-26:
(9*1)+(8*2)+(7*2)+(6*1)+(5*2)+(4*5)+(3*2)+(2*2)+(1*6)=91
91 % 10 = 1
So 1221252-26-1 is a valid CAS Registry Number.

1221252-26-1Downstream Products

1221252-26-1Relevant articles and documents

Ultrasound-assisted three-component synthesis of 3-(5-amino-1H-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-en yl)indolin-2-ones in water

Khorrami, Afshin Rajabi,Faraji, Fereshteh,Bazgir, Ayoob

experimental part, p. 587 - 591 (2011/01/03)

Indium(III) chloride was found to be an efficient catalyst for the synthesis of 3-(5-amino-1H-pyrazol-4-yl)-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-en yl)indolin-2-ones by one-pot, three-component reaction of dimedone, 1H-pyrazol-5-amines and isatins in water under ultrasonic irradiation. The advantages of this method are the use of a readily available catalyst, easy workup, excellent yields, and the use of water as a solvent that is considered to be relatively environmentally benign.

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