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80800-17-5

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80800-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80800-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,8,0 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80800-17:
(7*8)+(6*0)+(5*8)+(4*0)+(3*0)+(2*1)+(1*7)=105
105 % 10 = 5
So 80800-17-5 is a valid CAS Registry Number.

80800-17-5Relevant articles and documents

Analysis of Static and Dynamic Host-Guest Associations of Detergents with Cyclodextrins via Photoluminiscence Methods

Turro, Nicholas J.,Okubo, Tsuneo,Chung, Chao-Jen

, p. 1789 - 1794 (2007/10/02)

Host-guest inclusion type associations between β- and γ-cyclodextrins (CD) and a series of cationic phosphorescence detergent probes (i.e., trimethylammonium bromide, alkyl = methyl (n=1, BNK-1+), pentyl (n=5, BNK-5+), and decyl (n=10, BNK-10+)) are reported.No evidence for association could be detected for α-CD.The association equilibrium constant (K), the association rate constant (kf), and the dissociation rate constant (kb) were evaluated from dynamic phosphorescence decay method by using Co(NH3)63+ as an aqueous-phase phosphorescence quencher.The kf values are of the order of 107 M-1 s-1 and are independent of the detergent structure.However, the magnitudes of kb and K vary over several orders of magnitude as a function of detergent and host structure.The results are discussed in terms of the importance of dehydration of CD and/or probe as a rate-determining step of inclusion.

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