Cas 1821-44-9,N,N'-Diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine

1821-44-9

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Basic information

Product Name: N,N'-Diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine
Synonyms:
CAS NO:1821-44-9
Molecular Formula:
Molecular Weight: 332.3
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: N,N'-Diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine(CAS DataBase Reference)
NIST Chemistry Reference: N,N'-Diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine(1821-44-9)
EPA Substance Registry System: N,N'-Diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine(1821-44-9)

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: 1821-44-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 1821-44-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,2 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1821-44:
(6*1)+(5*8)+(4*2)+(3*1)+(2*4)+(1*4)=69
69 % 10 = 9
So 1821-44-9 is a valid CAS Registry Number.

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1821-44-9Downstream Products

1821-44-9Relevant academic research and scientific papers

Disubstitution on hexafluorobenzene with formanilides

Koppang, R.

, p. 177 - 180 (1995)

Nucleophilic attack on hexafluorobenzene by sodium formanilides gave N,N'-diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine as the main product at elevated temperature and N,N'-diformyl-N,N'-diphenyl-2,3,5,6-tetrafluorophenylene-1,4-diamine as the main compound at ambient temperature.Metallation of formanilide with lithium hydroxide instead of sodium hydride gave only 2,3,4,5,6-pentafluorodiphenylamine. - Keywords: Disubstitution; Fluorobenzene; Formanilides

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