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1234-21-5

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1234-21-5 Usage

Synonyms

BISNPU

Chemical class

Urea derivatives

Physical state

Yellow crystalline solid

Uses

a. Organic synthesis
b. Diesel fuel additive (improves combustion efficiency and reduces emissions)

Potential applications

a. Pharmaceuticals
b. Agrochemicals
c. Materials science

Additional uses

a. Corrosion inhibitor in the oil and gas industry
b. Stabilizer in the production of polymeric materials

Research interests

a. Antiproliferative activities
b. Antitumor activities

Check Digit Verification of cas no

The CAS Registry Mumber 1234-21-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,3 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1234-21:
(6*1)+(5*2)+(4*3)+(3*4)+(2*2)+(1*1)=45
45 % 10 = 5
So 1234-21-5 is a valid CAS Registry Number.
InChI:InChI=1/C13H10N4O5/c18-13(14-9-3-1-5-11(7-9)16(19)20)15-10-4-2-6-12(8-10)17(21)22/h1-8H,(H2,14,15,18)

1234-21-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,3-bis(3-nitrophenyl)urea

1.2 Other means of identification

Product number -
Other names Urea, N,N‘-bis(3-nitrophenyl)-

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1234-21-5 SDS

1234-21-5Relevant articles and documents

Investigation of active sites using solid state 27Al and 31P MAS NMR in ceramic amorphous aluminophosphate materials prepared from different potassium salts of phosphate for the synthesis of diphenyl urea derivatives

Harish,Kathyayini,Baby, Bindhu,Nagaraju

, (2021/04/19)

Ceramic amorphous aluminophosphate (CAmAlP) catalysts were prepared by precipitation method using different phosphate salts of potassium such as KH2PO4, K4P2O7 and K2HPO4 as well as H3PO4. The prepared materials were characterized by PXRD, FT-IR, XPS, SEM, BET Surface area, NH3-TPD, 27Al NMR and 31P NMR analytical methods. The catalytic activity of the materials was checked in the synthesis of diphenyl urea (DPU) from aniline and diethyl carbonate, under refluxing conditions. Further, the general application of the catalysts was tested using various substituted anilines. The recyclability of the catalysts was also studied. Uncertainties in percentage yields were calculated to check the reproducible surface properties. The P-XRD, BET Surface area and NH3-TPD results indicated that the materials were amorphous with mesoporous texture, surface areas and acidities in the range 200–260 m2/g and 0.4–0.7 mmol/g respectively. 27Al NMR studies revealed that Al is present in three different coordination states such as tetrahedral, pentagonal and octahedral. The relative percentages of these Al sites depends on the type of the potassium precursor phosphate salt used. Both tetrahedral and pentagonal Al sites in conjunction with each other represented catalytically active sites. An increase in the pentagonal sites contributed to additional increments to the catalytic activity of CAmAlP. The catalyst prepared from KH2PO4 was found to be the best and demonstrated 96% DPU yield.

A simple and efficient synthesis of diaryl ureas with reduction of the intermediate isocyanate by triethylamine

Zhou, Shuguang,Yao, Ting,Yi, Jicheng,Li, Dashuai,Xiong, Jing

, p. 315 - 319 (2013/07/27)

Thirty symmetrical diaryl urea derivatives were synthesised in moderate to excellent yields from arylamine and triphosgene with triethylamine as a reducing agent for the intermediate, isocyanate. It was significant that part of the products could be collected in almost quantitative yield without column chromatography. The procedure under mild reaction conditions was tolerant of a wide range of functional groups. The structures of the compounds were determined by NMR, MS and X-ray crystallographic analyses.

Discovery of the first small molecule inhibitor of human DDX3 specifically designed to target the RNA binding site: Towards the next generation HIV-1 inhibitors

Radi, Marco,Falchi, Federico,Garbelli, Anna,Samuele, Alberta,Bernardo, Vincenzo,Paolucci, Stefania,Baldanti, Fausto,Schenone, Silvia,Manetti, Fabrizio,Maga, Giovanni,Botta, Maurizio

supporting information; experimental part, p. 2094 - 2098 (2012/04/17)

Efficacy of currently approved anti-HIV drugs is hampered by mutations of the viral enzymes, leading invariably to drug resistance and chemotherapy failure. Recent data suggest that cellular co-factors also represent useful targets for anti-HIV therapy. H

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