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143521-78-2

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143521-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143521-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,2 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 143521-78:
(8*1)+(7*4)+(6*3)+(5*5)+(4*2)+(3*1)+(2*7)+(1*8)=112
112 % 10 = 2
So 143521-78-2 is a valid CAS Registry Number.

143521-78-2Downstream Products

143521-78-2Relevant articles and documents

Synthesis and heteronuclear NMR analysis of deuterium- and tritium-labelled methylenebisphosphonic acid

Blackburn,Rosenberg,Yakovleva

, p. 3927 - 3930 (1992)

Deuterium has been substituted into the methylene group of methylenebisphosphonic acid, MDP. Analysis of the phosphorus NMR spectrum of the product shows a linear high-frequency shift on sequential mono- and di-deuteriation. The corresponding tritium labelling of MDP achieved a specific activity of 30 mCi/mmol.

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