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54131-06-5

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54131-06-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54131-06-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,1,3 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 54131-06:
(7*5)+(6*4)+(5*1)+(4*3)+(3*1)+(2*0)+(1*6)=85
85 % 10 = 5
So 54131-06-5 is a valid CAS Registry Number.

54131-06-5Downstream Products

54131-06-5Relevant articles and documents

New cytotoxic benzosuberene analogs. Synthesis, molecular modeling and biological evaluation

Chen, Zecheng,Maderna, Andreas,Sukuru, Sai Chetan K.,Wagenaar, Melissa,O'Donnell, Christopher J.,Lam, My-Hanh,Musto, Sylvia,Loganzo, Frank

, p. 6688 - 6694 (2013)

In this Letter we describe the synthesis and biological evaluation of new benzosuberene analogs with structural modifications on the B-ring. The focus was initially to probe the chemical space around the B-ring C-8 position. This position was readily available for derivatization chemistry using our recently developed new synthesis for this compound class. Furthermore, we describe two new B-ring analogs, one containing a diene and the other a cyclic ether group. Both new analogs show excellent potencies in tumor cell proliferation assays. In addition, we describe molecular modeling studies that provide a binding rationale for reference compound 8 in the colchicine binding site using the known colchicine crystal structure. We also examine whether the cell based potency data obtained with selected new analogs are supported by modeling results.

New syntheses of the benzoquinone primin and its water-soluble analog primin acid via Heck reactions

Mabic,Vaysse,Benezra,Lepoittevin

, p. 1127 - 1134 (2007/10/03)

The syntheses of primin, 2-methoxy-6-pentylbenzoquinone (1), a major allergen of Primula obconica, and its water-soluble acid analog primin acid (2) are reported. The key steps were ortho-lithiation reactions of protected hydroquinones, palladium coupling (Heck) reactions, and salcomine-catalyzed oxidations of phenols to quinones.

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