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3-Ethyl-4-oxo-4H-chromene-2-carboxylic acid ethyl ester is a complex organic compound with the molecular formula C13H12O4. It is a derivative of chromene, a heterocyclic aromatic compound consisting of a benzene ring fused to a pyran ring. The molecule features an ethyl ester group attached to the carboxylic acid functionality, which is part of the chromene structure. This specific compound is characterized by the presence of an ethyl group at the 3-position and a carbonyl group at the 4-position, which contributes to its oxo classification. It is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals due to its unique structural features and reactivity. The compound's properties, such as its solubility and stability, can be influenced by the presence of these functional groups, making it a versatile building block in organic synthesis.

840-27-7

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840-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840-27-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 840-27:
(5*8)+(4*4)+(3*0)+(2*2)+(1*7)=67
67 % 10 = 7
So 840-27-7 is a valid CAS Registry Number.

840-27-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl 3-ethyl-4-oxo-4H-chromene-2-carboxylate

1.2 Other means of identification

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Other names -

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

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More Details:840-27-7 SDS

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