Cas 119458-78-5,spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>

119458-78-5

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Basic information

Product Name: spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>
Synonyms:
CAS NO:119458-78-5
Molecular Formula:
Molecular Weight: 244.25
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: spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>(CAS DataBase Reference)
NIST Chemistry Reference: spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>(119458-78-5)
EPA Substance Registry System: spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>(119458-78-5)

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: 119458-78-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 119458-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,5 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 119458-78:
(8*1)+(7*1)+(6*9)+(5*4)+(4*5)+(3*8)+(2*7)+(1*8)=155
155 % 10 = 5
So 119458-78-5 is a valid CAS Registry Number.

119458-78-5Upstream product

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119458-78-5Relevant academic research and scientific papers

Spirobutyrolactone Derived from 1-Phenyl-3-methyl-2-pyrazolin-5-one

Zolotoi, A. B.,El'natanov, Yu. I.,Chervin, I. I.,Konovalikhin, S. V.,D'yachenko, O. A.,et al.

, p. 746 - 750 (1988)

X-ray diffraction and NMR spectral examination have shown that 1-phenyl-3-methyl-2-pyrazolin-5-one reacts with methyl acrylate in methanol to give spiro.The conformation has been shown to be the sa

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