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5-oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulene-2,3-diyl diacetate is a complex organic compound with the molecular formula C16H14O5. It is derived from the benzo[7]annulene family, which are cyclic aromatic compounds with a benzene ring fused to a seven-membered ring. The compound features a 5-oxo group, indicating the presence of a carbonyl group at the 5-position, and a 6,7,8,9-tetrahydro structure, which means that the four carbon atoms in these positions are saturated, i.e., they are connected by single bonds and have hydrogen atoms attached. The 2,3-diyl diacetate part of the name signifies that the compound has two acetate groups attached to the 2 and 3 positions of the benzo[7]annulene core. This molecule is of interest in organic chemistry and may have potential applications in the synthesis of pharmaceuticals or other specialty chemicals due to its unique structure and reactivity.

18238-41-0

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18238-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18238-41-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,3 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18238-41:
(7*1)+(6*8)+(5*2)+(4*3)+(3*8)+(2*4)+(1*1)=110
110 % 10 = 0
So 18238-41-0 is a valid CAS Registry Number.

18238-41-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name (3-acetyloxy-5-oxo-6,7,8,9-tetrahydrobenzo[7]annulen-2-yl) acetate

1.2 Other means of identification

Product number -
Other names 2,3-diacetoxy-6,7,8,9-tetrahydro-5H-benzocycloheptenone

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

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

More Details:18238-41-0 SDS

18238-41-0Relevant academic research and scientific papers

Synthesis of diacetoxy benzocyclohepta thieno pyrimidinone

Vijayakumari,Shivaraj

, p. 187 - 190 (2007/10/03)

New heterocyclic system namely 2,3-diacetoxy-6,7,11,12-tetrahydro-5H- benzo[3′,4′] cyclohepta[4,5]thieno[2,3-d]pyrimidin-12-one (7) have been synthesized via the reaction of 2-amino-8,9-diacetoxy-5,6-dihydro-4H- benzo[3,4]cyclohepta[e]thiophene-1-carbonitrile (6) intermediate with formic acid in presence of MCM-41(H), in good yield.

Novel aromatic system, 2,3-diacetoxybenzocyclohepten-5-one

Peesapati, Venkateswarlu,Nagarapu, Lingaiah

, p. 962 - 965 (2007/10/02)

Reaction with lithium chloride in boiling dimethylformamide hes been shown to give high yields of 2,3-diacetoxybenzocyclohepten-5-one (4) from 2,3-diacetoxy-6,6-dibromo-6,7,8,9-tetrahydrobenzocyclohepten-5-one (3).Similar elimination occurs from 2,3-diacetoxy-6,9-dibromo-6,7,8,9-tetrahydrobenzocyclohepten-5-one (5) to give 4.

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