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313969-96-9

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313969-96-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 313969-96-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,3,9,6 and 9 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 313969-96:
(8*3)+(7*1)+(6*3)+(5*9)+(4*6)+(3*9)+(2*9)+(1*6)=169
169 % 10 = 9
So 313969-96-9 is a valid CAS Registry Number.

313969-96-9Downstream Products

313969-96-9Relevant articles and documents

The synthesis of sterically demanding amino acid-derived cyclic phosphonamides

Sprott,Hanson

, p. 7913 - 7918 (2000)

The preparation and utilization of C2-symmetric 1,4-diamines in the synthesis of amino acid-derived cyclic phosphonamides 1-3 are described. The 1,4-diamines are synthesized via three methods: (i) amino acid/fumaryl chloride coupling followed by amide reduction, (ii) amino acid/1,4-diamine coupling followed by amide reduction, and (iii) a template-supported ring-closing metathesis/hydrolysis sequence. The pseudo C2-symmetric cyclic phosphonamides 1-3 are prepared by condensation of the C2-symmetric 1,4-diamines to P(III) centers, followed by oxidation.

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