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76822-68-9

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76822-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76822-68-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,2 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 76822-68:
(7*7)+(6*6)+(5*8)+(4*2)+(3*2)+(2*6)+(1*8)=159
159 % 10 = 9
So 76822-68-9 is a valid CAS Registry Number.

76822-68-9Downstream Products

76822-68-9Relevant articles and documents

Synthesis of lin-Benzofervenulin, lin-Benzotheophylline, and lin-Benzocaffeine

Schneller, Stewart W.,Christ, William J.

, p. 1699 - 1702 (1981)

The synthesis of 7,9-dimethylpyrimido-1,2,4-benzotriazine-6,8(7H,9H)-dione (3) as the lin-benzo-separated analogue of fervenulin is reported in five steps from 7-chloro-2,4(1H,3H)-quinazolinedione.The preparation of lin-benzotheophylline (11) is described as arising from 1,3-dimethyl-7-hydrazino-6-nitro-2,4(1H,3H)-quinazolinedione (9) in a procedure originally designed to give 3.Methylation of 11 is shown to yield two products, one of which is lin-benzocaffeine (18).

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