Cas 21278-45-5,3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene

21278-45-5

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Basic information

Product Name: 3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene
Synonyms: 3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene
CAS NO:21278-45-5
Molecular Formula:
Molecular Weight: 358.264
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: 741.1±60.0 °C(Predicted)
Flash Point: N/A
Appearance: N/A
Density: 1.62±0.1 g/cm3(Predicted)
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene(CAS DataBase Reference)
NIST Chemistry Reference: 3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene(21278-45-5)
EPA Substance Registry System: 3,4-dicarboxyl-(3',4'-dicarboxylazophenyl) benzene(21278-45-5)

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: 21278-45-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 21278-45-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,7 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21278-45:
(7*2)+(6*1)+(5*2)+(4*7)+(3*8)+(2*4)+(1*5)=95
95 % 10 = 5
So 21278-45-5 is a valid CAS Registry Number.

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21278-45-5Relevant academic research and scientific papers

Synthesis, characterization and thermal properties of some new azopolyimides

Logesh,Rajendiran

experimental part, p. 3033 - 3038 (2012/08/29)

A new class of aromatic azopolyimides were synthesized from aromatic diamine with 3,3',4,4'-azobenzenetetracarboxlic dianhydride. The synthesis involved the reaction of the dianhydride with respective diamine to yield an intermediate, soluble, open chain

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