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16alpha-Bromo-17alpha-estradiol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74561-57-2

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74561-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74561-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,6 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74561-57:
(7*7)+(6*4)+(5*5)+(4*6)+(3*1)+(2*5)+(1*7)=142
142 % 10 = 2
So 74561-57-2 is a valid CAS Registry Number.

74561-57-2Relevant academic research and scientific papers

Syntheses of Seleno Estrogens

Arunachalam, Thangavel,Caspi, Eliahu

, p. 3415 - 3420 (2007/10/02)

The syntheses of phenylseleno and methylseleno analogues of estradiol are described.

Estrogen receptor based imaging agents. 1. Synthesis and receptor binding affinity of some aromatic and D-ring halogenated estrogens

Heiman,Senderoff,Katzenellenborgen,Neeley

, p. 994 - 1002 (2007/10/02)

Steroidal and nonsteroidal estrogens substituted with halogens ortho to the phenolic hydroxyl group and in the D ring at C-16 have been prepared as potential estrogen receptor-based imaging agents for human breast tumors. Estrogens bearing an aromatic flu

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