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2-Methyl-3-nitro-2H-1-benzopyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40345-75-3

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40345-75-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40345-75-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,3,4 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40345-75:
(7*4)+(6*0)+(5*3)+(4*4)+(3*5)+(2*7)+(1*5)=93
93 % 10 = 3
So 40345-75-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO3/c1-7-9(11(12)13)6-8-4-2-3-5-10(8)14-7/h2-7H,1H3

40345-75-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-methyl-3-nitro-2H-chromene

1.2 Other means of identification

Product number -
Other names 2H-1-BENZOPYRAN,2-METHYL-3-NITRO

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:40345-75-3 SDS

40345-75-3Downstream Products

40345-75-3Relevant academic research and scientific papers

The synthesis of 2,2-disubstituted 3-nitrochromenes from salicylaldehyde and 2,2-disubstituted 1-nitroalkenes

Yan, Ming-Chung,Jang, Yeong-Jiunn,Kuo, Wen-Yu,Tu, Zhijay,Shen, Kao-Hsien,Cuo, Ting-Shen,Ueng, Chuen-Her,Yao, Ching-Fa

, p. 1033 - 1048 (2007/10/03)

Reactions of salicylaldehyde (1) with β-nitrostyrenes (2), (4), and (6) in the presence of 1,4-diazabicyclo[2.2.2] octane (DABCO) without the use of solvent at 40 °C gave high yields of the corresponding 3-nitrochromenes, respectively. Other conjugated ni

An easy and efficient method for the synthesis of 2,2-dialkyl-3-nitrochromene

Yan, Ming-Chung,Jang, Yeong-Jiunn,Yao, Ching-Fa

, p. 2717 - 2721 (2015/09/10)

Reactions of salicylaldehyde 1, 1,4-diazabicyclo[2.2.2]octane (DABCO), with β-nitrostyrenes 2, 4, 12, 14, and 16, respectively, in the absence of solvent at 40°C gave high yields of 3-nitro-chromenes. Only 96% of trans-3-nitro-4-hydroxyflavans 7 or 98% of 10 were isolated when compounds 6 or 9 reacted with 1 and DABCO under similar conditions. When the reaction temperature was increased to 90°C, 7 and 10 underwent dehydration to generate 74% of 8 and 89% of 11.

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