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Cas Database |
| Name |
Hoechst 33342 |
EINECS | 245-691-1 |
| CAS No. | 23491-52-3 | Density | 1.274±0.06 g/cm3(Predicted) |
| PSA | 100.76000 | LogP | 7.13970 |
| Solubility | N/A | Melting Point |
268oC |
| Formula | C27H28 N6 O | Boiling Point | 725.9±70.0 °C(Predicted) |
| Molecular Weight | 452.559 | Flash Point | N/A |
| Transport Information | N/A | Appearance | Yellow-green powder. |
| Safety | Mutation data reported. When heated to decomposition it emits toxic vapors of NOx. | Risk Codes | 22-37/38 |
| Molecular Structure |
|
Hazard Symbols |
|
| Synonyms |
2,5'-Bibenzimidazole,2'-(p-ethoxyphenyl)-5-(4-methyl-1-piperazinyl)- (8CI); 2-[2-(4-Ethoxyphenyl)-6-benzimidazolyl]-6-(1-methyl-4-piperazinyl)benzimidazole;2'-(4-Ethoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-1H-benzimidazole;Bisbenzimide; HOE 33342; Ho 342; Hoechst 33342; NSC 334072 |
Article Data | 3 |
Hoechst 33342 Chemical Properties
IUPAC Name: 2-(4-Ethoxyphenyl)-6-[6-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1H-benzimidazole
Molecular Formula: C27H28N6O.3(HCl).3(H2O)
Molecular Weight: 452.55g/mol
Freely Rotating Bonds: 5
Polar Surface Area: 73.07 Å2
Flash Point: 420.6 °C
Enthalpy of Vaporization: 114.34 kJ/mol
Boiling Point: 771.9 °C at 760 mmHg
Vapour Pressure: 3.19E-24 mmHg at 25°C
The Cas Register Number of Bisbenzimide is 23491-52-3 .The chemical synonyms of Bisbenzimide (CAS NO. 23491-52-3) are 33258Hoechst ; 4-(5-(4-Methyl-1-piperazinyl)(2,5’-bi-1h-benzimidazol)-2’-yl)-phenotrihy ; 4-[5-(4-Methyl-1-piperazinyl)[2,5’-bi-1h-benzimidazol]-2’-yl]-phenotrihydr ; Bisbenzimidazoletrihydrochloride ; Bisbenzimidehydrochloride ; Hoe33058;Hoechstdye33258 ; Nsc-322921 .The molecular structure of Bisbenzimide (CAS NO. 23491-52-3) is.gif)
.
Hoechst 33342 Uses
It is an organic compound used as a fluorescent stain for DNA in molecular biology applications. It is an intercalating agent between Adenine-thymine base pairs.
Hoechst 33342 Toxicity Data With Reference
| 1. | dni-hmn-hla 300 nmol/L | CRNGDP Carcinogenesis. 13 (1992),2389. | ||
| 2. | dnd-mus-fbr 5 µmol/L | CRNGDP Carcinogenesis. 9 (1988),485. | ||
| 3. | mnt-ham-ovr 10 µmol/L | MUREAV Mutation Research. 448 (2000),35. | ||
| 4. | dnd-ham-lng 1 µmol/L | JHCYAS Journal of Histochemistry and Cytochemistry. 30 (1982),111. | ||
| 5. | dni-ham-lng 1 µmol/L | JHCYAS Journal of Histochemistry and Cytochemistry. 30 (1982),111. |
Hoechst 33342 Safety Profile
Mutation data reported. When heated to decomposition it emits toxic vapors of NOx.
Hazard Codes: 
Xn
Risk Statements: 22-36/38-36/37/38-20/21/22
R22: Harmful if swallowed
R36/38: Irritating to eyes and skin. .
R36/37/38: Irritating to eyes, respiratory system and skin.
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 26-36-24/25-23
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36: Wear suitable protective clothing.
S24/25: Avoid contact with skin and eyes
S23: Do not breathe vapour.
WGK Germany: 3
RTECS: SM1140500
F: 3-8-10
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