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23818-68-0

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23818-68-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23818-68-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,1 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23818-68:
(7*2)+(6*3)+(5*8)+(4*1)+(3*8)+(2*6)+(1*8)=120
120 % 10 = 0
So 23818-68-0 is a valid CAS Registry Number.

23818-68-0Relevant articles and documents

Synthesis, cytotoxicity and QSAR study of N-tosyl-1,2,3,4- tetrahydroisoquinoline derivatives

Pingaew, Ratchanok,Worachartcheewan, Apilak,Nantasenamat, Chanin,Prachayasittikul, Supaluk,Ruchirawat, Somsak,Prachayasittikul, Virapong

, p. 1066 - 1077 (2013/09/24)

1-Substituted-N-tosyl-1,2,3,4-tetrahydroisoquinoline analogs (4a-4l) were synthesized using the modified Pictet-Spengler reaction and evaluated for cytotoxicity. All tetrahydroisoquinolines displayed cytotoxicity against MOLT-3 cell lines, except for p-me

Nucleophilic deoxyfluorination of catechols

Nemoto, Hiroyuki,Nishiyama, Tsuyoshi,Akai, Shuji

supporting information; experimental part, p. 2714 - 2717 (2011/06/28)

Nucleophilic deoxyfluorinaiton of one of the two hydroxyl groups of catechols has been developed via the Umpolung concept. This method was successively applied to naturally occurring catechols, such as catechins and dopamine, to produce novel fluorinated

Thiophenol-mediated improvement of the Pictet-Spengler cyclization of N-tosyl-β-phenethylamines with aldehydes

Silveira, Claudio C.,Vieira, Adriano S.,Kaufman, Teodoro S.

, p. 7545 - 7549 (2008/02/08)

The Lewis acid-catalyzed Pictet-Spengler condensation of N-tosyl-β-phenethylamines with aldehydes is improved by the addition of thiophenol, furnishing better yields of 1-substituted tetrahydroisoquinolines at a given time.

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