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500003-02-1

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500003-02-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 500003-02-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,0,0 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 500003-02:
(8*5)+(7*0)+(6*0)+(5*0)+(4*0)+(3*3)+(2*0)+(1*2)=51
51 % 10 = 1
So 500003-02-1 is a valid CAS Registry Number.

500003-02-1Relevant articles and documents

Synthesis of a psilocin hapten and a protein-hapten conjugate

Albers,Lehr,Beike,Koehler,Brinkmann

, p. 1265 - 1270 (2002)

Derivatives of psilocin with ω-functionalized alkyl spacers in position 1 of the indole ring were synthesized as haptens for use in a radioimmunoassay. Whereas the psilocin analogues with a 3-aminopropyl and a 4-aminobutyl moiety at the indole nitrogen decomposed during synthesis, the analogous 3-carboxypropyl psilocin derivative proved to be stable. This compound was coupled to bovine serum albumin (BSA) using the N-hydroxysuccinimide ester-mediated conjugation. The protein-hapten conjugate was characterized by matrix-assisted laser desorption ionization mass spectrometry. The mass spectrometry data indicated an average incorporation ratio of 4-5 molecules of psilocin hapten per molecule of BSA.

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