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868523-17-5

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868523-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 868523-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,8,5,2 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 868523-17:
(8*8)+(7*6)+(6*8)+(5*5)+(4*2)+(3*3)+(2*1)+(1*7)=205
205 % 10 = 5
So 868523-17-5 is a valid CAS Registry Number.

868523-17-5Relevant articles and documents

Synthesis of P,N-heterocycles from ω-amino-H-phosphinates: Conformationally restricted α-amino acid analogs

Queffelec, Clemence,Ribiere, Patrice,Montchamp, Jean-Luc

supporting information; experimental part, p. 8987 - 8991 (2009/04/11)

(Chemical Equation Presented) P,N-Heterocycles (3-hydroxy-1,3- azaphospholane and 3-hydroxy-1,3-azaphosphorinane-3-oxide) are synthesized in moderate yield from readily available ω-amino-H-phosphinates and aldehydes or ketones via an intramolecular Kabachnik-Fields reaction. The products are conformationally restricted phosphinic analogs of α-amino acids. The multigram-scale syntheses of the H2N(CH2) nPO2H2 phosphinic precursors (n = 1, 2, 3) and some derivatives are also described.

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