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1257427-45-4

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1257427-45-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257427-45-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,4,2 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1257427-45:
(9*1)+(8*2)+(7*5)+(6*7)+(5*4)+(4*2)+(3*7)+(2*4)+(1*5)=164
164 % 10 = 4
So 1257427-45-4 is a valid CAS Registry Number.

1257427-45-4Downstream Products

1257427-45-4Relevant articles and documents

Synthesis and cytotoxicity evaluation of 1-[3-(9H-carbazol-4-yloxy)-2- hydroxypropyl]-3-aryl-1H-pyrazole-5-carboxylic acid derivatives

Nagarapu, Lingaiah,Gaikwad, Hanmant K.,Sarikonda, Kartheeka,Mateti, Jhansi,Bantu, Rajashaker,Raghu,Manda, Krishna Madhuri,Kalvendi, Shasi Vardhan

experimental part, p. 4720 - 4725 (2010/11/16)

Several novel molecules, 1-(3′-(9H-carbazol-4-yloxy)-2′- hydroxypropyl)-3-aryl-1H-pyrazole-5-carboxylic acid derivatives 3a-g were synthesized and screened to evaluate their cytotoxicity against cancer cells in vitro. The compounds 3a-g has been prepared by the reaction of ethyl 3-aryl-1H-pyrazole-5-carboxylate with 4-oxiranylmethoxy-9H-carbazole in moderate to excellent yields. The cytotoxicity of synthesized compounds was evaluated by a SRB (sulforhodamine B) assay against cancer cell such as SK-N-SH human neuroblastoma (NB), human A549 lung carcinoma, human breast cancer MCF-7 cell lines. The results showed that seven compounds can suppress SK-N-SH tumor cancer cell growth. Among them, compound 3d was the most effective small molecule in inhibiting SK-N-SH cell growth.

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