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81677-26-1

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81677-26-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81677-26-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,7 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81677-26:
(7*8)+(6*1)+(5*6)+(4*7)+(3*7)+(2*2)+(1*6)=151
151 % 10 = 1
So 81677-26-1 is a valid CAS Registry Number.

81677-26-1Downstream Products

81677-26-1Relevant articles and documents

Thio-Analogues of 2-(1H-Heteroarylidene)-1H-indene-1,3(2H)-diones, Synthesis and Formation of Metal Complexes

Buggle, Katherine,Glass, William K.,Nangle, Michael,Power, Joseph

, p. 81 - 90 (2007/10/02)

2-(1H-Heteroarylidene)-1H-indene-1,3(2H)-diones were converted into anils and dianils and then into monothio- and dithio-derivatives by treatment with hydrogen sulphide.The 2-pyridinyl monothioderivate was converted into S-alkyl ethers.In contrast with the dione 1 the thio-derivatives readily formed isolable complexes with transition metals.Spectroscopic and magnetic data are reported. - Keywords: Electronic spectra; Metal complexes; Thiopyrophthalone

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