Cas 4664-88-4,Bicyclo[2.2.0]hexa-2,5-diene-2,3-dicarboxylic acid, 1,4,5,6-tetramethyl-, dimethyl ester

4664-88-4

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Basic information

Product Name: Bicyclo[2.2.0]hexa-2,5-diene-2,3-dicarboxylic acid, 1,4,5,6-tetramethyl-, dimethyl ester
Synonyms:
CAS NO:4664-88-4
Molecular Formula: C14H18O4
Molecular Weight:
EINECS: N/A
Product Categories: N/A
Mol File: 4664-88-4.mol

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: Bicyclo[2.2.0]hexa-2,5-diene-2,3-dicarboxylic acid, 1,4,5,6-tetramethyl-, dimethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: Bicyclo[2.2.0]hexa-2,5-diene-2,3-dicarboxylic acid, 1,4,5,6-tetramethyl-, dimethyl ester(4664-88-4)
EPA Substance Registry System: Bicyclo[2.2.0]hexa-2,5-diene-2,3-dicarboxylic acid, 1,4,5,6-tetramethyl-, dimethyl ester(4664-88-4)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 4664-88-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4664-88-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,6 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4664-88:
(6*4)+(5*6)+(4*6)+(3*4)+(2*8)+(1*8)=114
114 % 10 = 4
So 4664-88-4 is a valid CAS Registry Number.

4664-88-4Upstream product

4664-88-4Downstream Products

1217-12-5 Tetramethylphthalsaeure-dimethylester

4664-88-4Relevant academic research and scientific papers

Revisiting Cyclobutadienemetal Complexes: High-Content Dewar Benzene Polymers and a One-Pot Synthesis of Permethylated Ladderanes

Marsella, Michael J.,Estassi, Samia,Wang, Li-Sheng,Yoon, Kunsang

, p. 192 - 194 (2004)

High-content Dewar benzene polymers and sterically congested [n] -ladderanes have been synthesized from [4πs+2πs] cyclobutadienemetal complex cycloaddition chemistry. In the former case, tetramethylcyclobutadiene-AlCl3 is reacted with an acetylene-containing precursor polymer to yield > 95% Dewar benzene incorporation. In the latter case, [n]-ladderanes containing up to thirteen rings are prepared via a one-pot procedure from 2-butyne.

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