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67867-33-8

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67867-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67867-33-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,6 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67867-33:
(7*6)+(6*7)+(5*8)+(4*6)+(3*7)+(2*3)+(1*3)=178
178 % 10 = 8
So 67867-33-8 is a valid CAS Registry Number.

67867-33-8Relevant articles and documents

THIENO (2, 3B) PYRAZINE COMPOUNDS AS B-RAF INHIBITORS

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Paragraph 0227, (2013/04/10)

The invention relates to compounds according to general Formula (I) or a pharmaceutically acceptable salt thereof. The compounds can be used for the treatment of cancer.

Studies on Pyrazines. 17. . An Efficient Synthesis of Pteridine-6-carboxylic Acids

Sato, Nobuhiro,Saito, Noriko

, p. 1737 - 1740 (2007/10/02)

2,4-Diaminopteridine-6-carboxylic acid (1) and pterin-6-carboxylic acid (2) were prepared by permanganate oxidation of the corresponding 6-(2-furyl)-substituted pteridines under much milder conditions.Several attempts to cleave the furan ring with other oxidizing agents are also described.

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