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24043-40-1

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24043-40-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 24043-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,0,4 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 24043-40:
(7*2)+(6*4)+(5*0)+(4*4)+(3*3)+(2*4)+(1*0)=71
71 % 10 = 1
So 24043-40-1 is a valid CAS Registry Number.

24043-40-1Relevant articles and documents

A convenient synthesis of 3-phenylthio-azetidin-2-ones

Bari,Sharma,Sethi

, p. 1114 - 1119 (2007/10/03)

3-Phenylthio-4,4-diethoxycarbonyl-azetidin-2-ones 8 have been conveniently synthesised by reacting 2-chlorophenylthioacetyl chloride 5 with aryl substituted aminomalonates 7 under mild basic conditions. Alternatively, C-3 alkylation of azetidin-2-one usin

Studies on beta-lactams.

Chatterjee,Abdulla

, p. 1120 - 1127 (2007/10/06)

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