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667886-74-0

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667886-74-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 667886-74-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,8 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 667886-74:
(8*6)+(7*6)+(6*7)+(5*8)+(4*8)+(3*6)+(2*7)+(1*4)=240
240 % 10 = 0
So 667886-74-0 is a valid CAS Registry Number.

667886-74-0Downstream Products

667886-74-0Relevant articles and documents

Synthesis and reactions of some new heterocyclic compounds containing cycloalka[e]thieno[2,3-b]pyridine Moiety

Al-Sehemi, Abdullah G.,Bakhite, Etify A.

, p. 975 - 985 (2007/10/03)

Hydrolysis of ethyl 3-amino-4-aryl-cycloalka[e]thieno[2,3-b]pyridine-2- carboxylates (3a-d) gave the corresponding o-aminocarboxylic acids 4 a-d. Heating the latter compounds (4a-d) with acetic an hydride furnished the oxazinone derivatives 5a-d which, in

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