Cas 4764-21-0,2H-1-Benzoselenin-2-one

4764-21-0

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Basic information

Product Name: 2H-1-Benzoselenin-2-one
Synonyms:
CAS NO:4764-21-0
Molecular Formula:
Molecular Weight: 209.106
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: 2H-1-Benzoselenin-2-one (CAS DataBase Reference)
NIST Chemistry Reference: 2H-1-Benzoselenin-2-one (4764-21-0)
EPA Substance Registry System: 2H-1-Benzoselenin-2-one (4764-21-0)

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: 4764-21-0(Hazardous Substances Data)

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4764-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4764-21-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,6 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4764-21:
(6*4)+(5*7)+(4*6)+(3*4)+(2*2)+(1*1)=100
100 % 10 = 0
So 4764-21-0 is a valid CAS Registry Number.

4764-21-0Upstream product

129866-69-9 (E)-3-phenyl-2-propeneselenoic acid Se-phenyl ester

4764-21-0Downstream Products

4764-21-0Relevant academic research and scientific papers

Synthesis of Selenacoumarins

Jayachandran, T.,Manimaran, T.,Ramakrishnan, V. T.

, p. 328 - 330 (2007/10/02)

Selenacoumarin (2a) and 3-methylselenacoumarin (2b) have been synthesized by the cyclisation of selenophenyl cinnamate (1a) and selenophenyl 2-methylcinnamate (1b) respectively in the presence of AlCl3 in chlorobenzene.The compounds have been characterised by elemental analysis and spectral (IR, PMR and mass) data.

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