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81099-11-8

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81099-11-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81099-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,9 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81099-11:
(7*8)+(6*1)+(5*0)+(4*9)+(3*9)+(2*1)+(1*1)=128
128 % 10 = 8
So 81099-11-8 is a valid CAS Registry Number.

81099-11-8Downstream Products

81099-11-8Relevant articles and documents

Synthesis of Some 2,3-Dihydro-11bH-thiazolobenzoxazepin-5-(6H)one Derivatives. A New Heterocyclic Ring System

Torrini, Ines,Paradisi, Mario Paglialunga,Romeo, Aurelio

, p. 1451 - 1456 (2007/10/02)

Condensation of (S)-penicillamine methyl or ethyl ester hydrochloride with salicylaldehyde and its C-5 derivatives, provided the diastereomeric thiazolidine derivatives 1 and 2.The resulting amino function was acylated to afford the amides 3 and 4.Cyclization of the latter led to the 2,3-dihydro-11bH-thiazolobenzoxazepin-5-(6H)ones 5 and 6.Conformational data for these heterocyclic compounds are discussed.

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