Cas 127820-44-4,5-[2,2-Dimethyl-prop-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid methyl ester

127820-44-4

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Basic information

Product Name: 5-[2,2-Dimethyl-prop-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid methyl ester
Synonyms:
CAS NO:127820-44-4
Molecular Formula:
Molecular Weight: 192.258
EINECS: N/A
Product Categories: N/A
Mol File: 127820-44-4.mol
Article Data: 1

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: 5-[2,2-Dimethyl-prop-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid methyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 5-[2,2-Dimethyl-prop-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid methyl ester(127820-44-4)
EPA Substance Registry System: 5-[2,2-Dimethyl-prop-(E)-ylidene]-cyclopenta-1,3-dienecarboxylic acid methyl ester(127820-44-4)

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: 127820-44-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 127820-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,2 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 127820-44:
(8*1)+(7*2)+(6*7)+(5*8)+(4*2)+(3*0)+(2*4)+(1*4)=124
124 % 10 = 4
So 127820-44-4 is a valid CAS Registry Number.

127820-44-4Upstream product

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127820-44-4Relevant articles and documents

Synthesis and Reactions of Ester-Substituted Fulvenes. A New Route to Δ9(12)-Capnellene

Wang, Ying,Mukherjee, Debabrata,Birney, David,Houk, K. N.

, p. 4504 - 4506 (1990)

The condensation of cyclopentadienecarboxylic acid ester with aldehydes produces ester-substituted fulvenes regioselectively.The products undergo both intermolecular and intramolecular cycloadditions to give the synthetically useful linearly fused tricyclopentanoids.A formal synthesis of Δ9(12)-capnellene is reported.

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