Cas 334698-40-7,2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-<i>p</i>-tolyl-prop-2-ynyl) ester

334698-40-7

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Basic information

Product Name: 2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-p-tolyl-prop-2-ynyl) ester
Synonyms: 2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-p-tolyl-prop-2-ynyl) ester
CAS NO:334698-40-7
Molecular Formula:
Molecular Weight: 344.364
EINECS: N/A
Product Categories: N/A

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: 2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-p-tolyl-prop-2-ynyl) ester(CAS DataBase Reference)
NIST Chemistry Reference: 2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-p-tolyl-prop-2-ynyl) ester(334698-40-7)
EPA Substance Registry System: 2-ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-(3-p-tolyl-prop-2-ynyl) ester(334698-40-7)

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: 334698-40-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 334698-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,4,6,9 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 334698-40:
(8*3)+(7*3)+(6*4)+(5*6)+(4*9)+(3*8)+(2*4)+(1*0)=167
167 % 10 = 7
So 334698-40-7 is a valid CAS Registry Number.

334698-40-7Upstream product

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334698-40-7Relevant academic research and scientific papers

A novel Lewis acid-promoted enyne cycloisomerization of triester-substituted alkenes

Yamazaki,Yamada,Otsubo,Haruna,Kutsuwa,Tamura

, p. 69 - 70 (2001)

A novel cycloisomerization reaction of enynes 4 in the presence of ZnBr2 and THF (1 eq.) in CH2Cl2 at -40 °C gave exo-methylenic 1,3-dienes 5 in moderate to good yield.

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