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142780-67-4

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142780-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142780-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,8 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 142780-67:
(8*1)+(7*4)+(6*2)+(5*7)+(4*8)+(3*0)+(2*6)+(1*7)=134
134 % 10 = 4
So 142780-67-4 is a valid CAS Registry Number.

142780-67-4Upstream product

142780-67-4Downstream Products

142780-67-4Relevant articles and documents

Autoxidation of drugs: Prediction of degradation impurities from results of reaction with radical chain initiators

Boccardi

, p. 431 - 435 (2007/10/02)

In the study of the degradation of drug substances by molecular oxygen, their specific reaction mechanisms must be taken into account. The rate- determining step is usually the reaction of the substrate with a radical chain initiator, which is often an unknown impurity. The reactivity and selectivity of autoxidation can be controlled better by using a radical chain initiator, such as AIBN, than by changing the temperature or the oxygen pressure. In this paper the products profiles of four pharmaceutical substances in a simple oxidation test with AIBN are compared with the results of long term natural stability tests or with already established stabilities.

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