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4-Chlorostilbazole is a chemical compound with the molecular formula C14H10ClN and is known for its use as a reagent in the detection of nitrites. It is a white crystalline solid that is soluble in organic solvents such as ethanol and acetone. The compound is used in a colorimetric test where, in the presence of nitrites and under acidic conditions, it forms a red-violet dye. This reaction is the basis for the Griess test, which is commonly employed to detect the presence of nitrites in various samples, including environmental and biological specimens. 4-Chlorostilbazole is also used in the synthesis of other organic compounds and as an intermediate in chemical reactions. It is important to handle 4-Chlorostilbazole with care due to its potential toxicity and environmental impact.

2502-99-0

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2502-99-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2502-99-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,0 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2502-99:
(6*2)+(5*5)+(4*0)+(3*2)+(2*9)+(1*9)=70
70 % 10 = 0
So 2502-99-0 is a valid CAS Registry Number.
InChI:InChI=1/C13H10ClN/c14-13-5-3-11(4-6-13)1-2-12-7-9-15-10-8-12/h1-10H

2502-99-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-(P-CHLOROSTYRYL)PYRIDINE

1.2 Other means of identification

Product number -
Other names trans-4-Chlor-L-prolin

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:2502-99-0 SDS

2502-99-0Relevant academic research and scientific papers

A new insight into the push-pull effect of substituents via the stilbene-like model compounds

Cao, Chaotun,Cao, Chenzhong,Zeng, Zhao

, (2022/02/01)

In this paper, authors report on 1-pyridyl-2-arylethenes, 1-furyl-2-arylethylenes, 1,2-diphenylpropylenes and substituted cinnamyl anilines as stilbene-like model compounds to investigate the factors dominating the push-pull effect of substituents via usi

Determination and application of the excited-state substituent constants of pyridyl and substituted phenyl groups

Cao, Chao-Tun,Yan, Lu,Cao, Chenzhong

, (2021/05/21)

Thirty six 1-pyridyl-2-arylethenes XCH=CHArY (abbreviated XAEY) were synthesized, in which, X is 2-pyridyl, 3-pyridyl and 4-pyridyl and Y is OMe, Me, H, Br, Cl, F, CF3, and CN. Their ultraviolet absorption spectra were measured in anhydrous ethanol, and their wavelengths of absorption maximum λmax were recorded. Also, the 234 λmax values of 1-substituted phenyl-2-arylethylene compounds (XAEY, where X is substituted phenyl) were collected. The excited-state substituent constants (Formula presented.) of three pyridyl groups and 23 substituted phenyl groups (total of 26) were obtained by means of curve-fitting method. Taking the λmax values of 358 samples of bi-arylethene derivatives as a data set and 126 samples of bi-aryl Schiff bases (including nine compounds synthesized by this work) as another data set, quantitative correlation analyses were performed by employing the obtained (Formula presented.) as a parameter, and good results were obtained for the two data sets. The reliability of the obtained (Formula presented.) values was verified. The results of this paper can provide excited-state substituent constants for the study and application of optical properties of conjugated organic compounds containing aryl groups.

Ligand-free palladium-catalysed oxidative Heck reaction of 4-vinylpyridine with arylboronic acids: Selective synthesis of (E)-4-styrylpyridines

Shi, Chuanli,Ding, Jinchang,Jiang, Jun,Chen, Jiuxi,Wu, Huayue,Liu, Miaochang

supporting information; experimental part, p. 322 - 325 (2012/09/21)

A ligand-free palladium-catalysed oxidative Heck reaction of various arylboronic acids with 4-vinylpyridine has been developed, achieving (E)-4-styrylpyridines with high selectively in moderate to good yields. A plausible mechanism for the formation of (E)-4-styrylpyridines has been proposed.

A [2+2] cross-photodimerisation of photostable olefins via a three-component cocrystal solid solution

Buar, Dejan-Kreimir,Sen, Arundhuti,Mariappan, S. V. Santhana,MacGillivray, Leonard R.

supporting information; experimental part, p. 1790 - 1792 (2012/03/09)

A ditopic hydrogen-bond-donor template in the form of resorcinol facilitates a [2+2] cross-photodimerisation of 4-Cl-stilbazole and 4-Me-stilbazole in a rare cocrystal solid solution. A photoreaction does not proceed with the olefins individually or as a solid solution composed solely of the two olefins.

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