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CAS No.: | 23491-45-4 |
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Name: | Hoechst 33258 |
Molecular Structure: | |
Formula: | C25H27Cl3N6O |
Molecular Weight: | 533.888 |
Synonyms: | Phenol,4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]-,trihydrochloride (9CI);Phenol,p-[5-[5-(4-methyl-1-piperazinyl)-2-benzimidazolyl]-2-benzimidazolyl]-,trihydrochloride (8CI);2-[2-(4-Hydroxyphenyl)-6-benzimidazolyl]-6-(1-methyl-4-piperazyl)-benzimidazoletrihydrochloride;2-[2-(4-Hydroxyphenyl)-6-benzimidazolyl]-6-(1-methyl-4-piperazyl)benzimidazoletrichloride;Bisbenzimide (quenchant);Bisbenzimidetrihydrochloride;H 33258;Hoechst 33258;NSC 322921;Pibenzimol hydrochloride;4-[5-[5-(4-Methyl-1-piperazinyl)-2-benzimidazolyl]-2-benzimidazolyl]phenoltrihydrochloride; |
EINECS: | 245-690-6 |
Density: | 1.5099 (rough estimate) |
Melting Point: | 314 °C |
Boiling Point: | 643.1oC at 760mmHg |
Flash Point: | 342.7oC |
Solubility: | soluble in water |
Appearance: | yellow to yellow-green powder |
Hazard Symbols: | Xn |
Risk Codes: | 22-36/38-36/37/38-20/21/22 |
Safety: | 26-36-24/25-23 |
PSA: | 84.07000 |
LogP: | 6.63950 |
IUPAC Name: 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride
Formula: C25H27Cl3N6O
Molecular Weight: 533.88
Molecular Structure of 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride (CAS NO.23491-45-4 ):
Melting Point: 314 °C
Flash Point: 342.7 °C
Enthalpy of Vaporization: 94.9 kJ/mol
Boiling Point: 643.1 °C at 760 mmHg
Vapour Pressure: 1.98E-16 mmHg at 25°C
Appearance: yellow to yellow-green powder
1. | mmo-sat 100 µmol/L | AMACCQ Antimicrobial Agents and Chemotherapy. 9 (1976),77. | ||
2. | dnd-esc 10 mg/L | MUREAV Mutation Research. 89 (1981),95. | ||
3. | sce-ham:lng 15 µmol/L | HEREAY Hereditas. 96 (1982),295. | ||
4. | sce-ham:ovr 10 µmol/L | NATUAS Nature. 258 (1975),121. | ||
5. | ivn-rat LD50:32,200 µg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. PB84-171206 . | ||
6. | ivn-mus LD50:36,900 µg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) No. PB84-171206 . |
Poison by intravenous route. Mutation data reported. When heated to decomposition it emits very toxic fumes of HCl and NOx.
Safety Information about 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride (CAS NO.23491-45-4 ):
Hazard Codes:
Xn:
Risk Statements about 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride (CAS NO.23491-45-4 ): 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 about 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride (CAS NO.23491-45-4 ) 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 gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer).
F3: Hygroscopic.
F8: Photosensitive.
F10: Keep under argon.
WGK Germany: 3
RTECS: SM1140500
The chemical synonyms of 4-[5-[6-(4-Methylpiperazin-1-yl)-1H-benzimidazol-2-yl]-1,3-dihydrobenzimidazol-2-ylidene]cyclohexa-2,5-dien-1-one trihydrochloride (CAS NO.23491-45-4 ) 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 . This product shoud be storaged at 2-8°C. Hoechst 33258 is harmful to human beings, please make some protection when operate.