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1229643-41-7

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1229643-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1229643-41-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,9,6,4 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1229643-41:
(9*1)+(8*2)+(7*2)+(6*9)+(5*6)+(4*4)+(3*3)+(2*4)+(1*1)=157
157 % 10 = 7
So 1229643-41-7 is a valid CAS Registry Number.

1229643-41-7Upstream product

1229643-41-7Downstream Products

1229643-41-7Relevant articles and documents

Novel benzyl-substituted molybdocene anticancer drugs

Gleeson, Brendan,Claffey, James,Deally, Anthony,Hogan, Megan,Méndez, Luis Miguel Menéndez,Müller-Bunz, Helge,Patil, Siddappa,Tacke, Matthias

, p. 1831 - 1836 (2010/09/04)

From the reaction of 6-(p-methoxyphenyl) fulvene (1a), 6-(3,4-dimethoxyphenyl) fulvene (1b) and 6-(3,4,5-trimethoxyphenyl) fulvene (1c) with LiBEt3H, lithiated cyclopentadienide intermediates (2a-c) were synthesised. These intermediates were then transmetallated to molybdocene using MoCl4 (synthesized in situ) to yield the benzyl-substituted molybdocenes bis-[(p-methoxybenzyl)cyclopentadienyl] molybdenum (IV) dichloride (3a), bis-[(3,4-dimethoxybenzyl)cyclopentadienyl] molybdenum (IV) dichloride (3b), and bis-[(3,4,5-trimethoxybenzyl)cyclopentadienyl] molybdenum (IV) dichloride (3c). The molybdocene 3a was characterised by single crystal X-ray diffraction. All three molybdocenes had their cytotoxicity investigated through MTT based preliminary in vitro testing on the human renal cell line Caki-1 in order to determine their IC50 values and compare them with the corresponding titanocene and vanadocene dichloride derivatives. Molybdocenes 3b-c were found to have the same IC50 values of 290 μM, while 3a yielded a value of 84 μM, respectively.

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