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256428-54-3

256428-54-3

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256428-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256428-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,2 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 256428-54:
(8*2)+(7*5)+(6*6)+(5*4)+(4*2)+(3*8)+(2*5)+(1*4)=153
153 % 10 = 3
So 256428-54-3 is a valid CAS Registry Number.

256428-54-3Upstream product

256428-54-3Downstream Products

256428-54-3Relevant articles and documents

Stereochemical activity of the metal-centered lone electron pair in group 14 metallocenes. Crystal structure of the linear sandwich complex [C5(iPR)3H2]2Pb

Burkey, David J.,Hanusa, Timothy P.,Huffman, John C.

, p. 153 - 155 (2000)

Stereochemically active valence electrons are not present in the structure of [C5Pr(i))3H2]2Pb, which, like [C5Me4(SiMe2Bu(t))]2Pb, possesses parallel cyclopentadienyl rings. There are no close intramolecular contacts that force the rings to be parallel; the structure is consistent with the lack of a strong electronic preference for bending in heavy group 14 metallocenes.

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