CAS 23491-45-4|Hoechst 33258 (trihydrochloride)

Introduction:Basic information about CAS 23491-45-4|Hoechst 33258 (trihydrochloride), including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NameHoechst 33258 (trihydrochloride)
CAS Number23491-45-4Molecular Weight533.880
Density/Boiling Point643.1ºC at 760mmHg
Molecular FormulaC25H27Cl3N6OMelting Point314 °C
MSDSChineseUSAFlash Point342.7ºC
Symbol
GHS07
Signal WordWarning

Names

Namep-[5-(4-methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)-2'-yl]phenol trihydrochloride
SynonymMore Synonyms

Hoechst 33258 (trihydrochloride) BiologicalActivity

DescriptionHoechst 33258 trihydrochloride is a fluorescent dyes, which can be used as a cell dye for DNA.
Related CatalogSignaling Pathways >>Others >>OthersDye ReagentsResearch Areas >>Cancer
Target

IC50: 51.31±4.56 μM (HeLa cell), 32.43±3.27 μM (HL60 cell), 15.42±2.16 μM (U937 cell)[1]

In VitroHoechst 33258, a fluorescent compound with a head-to-tail bis-benzimidazole structure, is initially found to be cytotoxic against L1210 murine leukemia. Hoechst 33258 is evaluated for their cytotoxicity against human tumor cell lines, which are cervix carcinoma cell line (HeLa), Human promyelocytic leukemia cell (HL60) and U937 cell Line. The IC50 determined in the case of HeLa, HL60 and U937 is 51.31±4.56, 32.43±3.27 and 15.42±2.16 μM for Hoechst 33258, respectively[1]. The cytotoxic property of Hoechst 33258 is investigated on a panel of seven tumour cell lines of different histological origin and Madine-Darby canine kidney (MDCK) normal cells. All cell lines, except MCF-7, exposed to Hoechst 33258 exhibit GI50 from 84×10-6 to 191.5×10-6 mol/dm3. Under the same experimental conditions, Hoechst 33258, used as a binder reference compound, stops the cell cycle in S phase and G0/G1[2].
Cell AssayHoechst 33258 is prepared as stock solutions in highly pure water. Working solutions in a concentration range of 10-3-10-6 mol/dm3 are prepared prior to testing. Cytotoxic effects of Hoechst 33258 on tested cell lines are determined by the MTT assay. Cells are seeded in 96 micro well flat bottom plates at a concentration of 2×104 cells/mL and left overnight in the CO2 incubator allowing them to attach to the plate surface. Growing medium is replaced with compound supplemented or control medium and incubated for 72 h. Fresh medium with 5 mg/mL of MTT is added onto cells and incubated for 4 h at 37°C. Upon media removal, water insoluble MTT-formazan crystals formed inside the living cells are dissolved in DMSO and the absorbance at 570 nm proportional to the number of living cells is measured on an Elisa Microplate Reader. All experiments are performed at least three times in triplicates.The GI50 value, defined as the compound concentration (μM) leading to cellular growth inhibition by 50%, is calculated and used as a parameter to compare cytotoxicity among the compounds[2].
References

[1]. Wang XJ, et al. Newly synthesized bis-benzimidazole derivatives exerting anti-tumor activity through inductionof apoptosis and autophagy. Bioorg Med Chem Lett. 2012 Oct 1;22(19):6297-300.

[2]. Stolić I, et al. Synthesis, DNA/RNA affinity and antitumour activity of new aromatic diamidines linked by 3,4-ethylenedioxythiophene. Eur J Med Chem. 2011 Feb;46(2):743-55.

Chemical & Physical Properties

Boiling Point643.1ºC at 760mmHg
Melting Point314 °C
Molecular FormulaC25H27Cl3N6O
Molecular Weight533.880
Flash Point342.7ºC
Exact Mass532.131165
PSA84.07000
LogP6.63950
InChIKeySMNPLAKEGAEPJD-UHFFFAOYSA-N
SMILESCN1CCN(c2ccc3nc(-c4ccc5nc(-c6ccc(O)cc6)[nH]c5c4)[nH]c3c2)CC1.Cl.Cl.Cl
Storage condition2-8°C
Water SolubilitySOLUBLE

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SM1140500
CHEMICAL NAME :
Phenol, p-(5-(5-(4-methyl-1-piperazinyl)-2-benzimidazolyl)-2- benzimidazolyl)-, trihydrochloride
CAS REGISTRY NUMBER :
23491-45-4
LAST UPDATED :
199709
DATA ITEMS CITED :
14
MOLECULAR FORMULA :
C25-H24-N6-O.3Cl-H
MOLECULAR WEIGHT :
533.93
WISWESSER LINE NOTATION :
T56 BM DNJ CR DQ& G- CT56 BM DNJ G- AT6N DNTJ D1 &GH 3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
32200 ug/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - dyspnea Skin and Appendages - hair
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
36900 ug/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - dyspnea Skin and Appendages - hair

MUTATION DATA

TYPE OF TEST :
DNA damage
TEST SYSTEM :
Mammal - species unspecified Lymphocyte
DOSE/DURATION :
1600 nmol/L
REFERENCE :
CHROAU Chromosoma. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1939- Volume(issue)/page/year: 52,297,1975

Safety Information

Symbol
GHS07
Signal WordWarning
Hazard StatementsH302-H315-H319
Precautionary StatementsP305 + P351 + P338
Personal Protective Equipmentdust mask type N95 (US);Eyeshields;Gloves
Hazard CodesXn: Harmful;
Risk PhrasesR22
Safety PhrasesS26-S36-S24/25-S23
RIDADRNONH for all modes of transport
WGK Germany3
RTECSSM1140500

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Synonyms

BBIH
BISBENZIMIDE H 33258
Hoechst33258
Hoechst Stain
4-[5-(4-Methylpiperazin-1-yl)-1H,1'H-2,5'-bibenzimidazol-2'-yl]phenol trihydrochloride
BISBENZIMIDE
Phenol, 4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]-, trihydrochloride
Bisbenzimide H 33258 trihydrochloride
2'-(4-Hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-1H-benzimidazole Trihydrochloride
Phenol, 4-[5- (4-methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)- 2'-yl]-, trihydrochloride
Bisbenzimide H 33258 Hydrate
MFCD00012679
4-[5-(4-Methyl-1-piperazinyl)-1H,1'H-2,5'-bibenzimidazol-2'-yl]phenol trihydrochloride
Hoechst 33258
2'-(4-hydroxyphenyl)-5-(4-methylpiperazin-4-ium-1-yl)-3H,3'H-2,6'-bi-3,1-benzimidazol-1-ium trichloride
Phenol, p-[5-[5- (4-methyl-1-piperazinyl)-2-benzimidazolyl]-2- benzimidazolyl]-, trihydrochloride
Pibenzimol HCl
Phenol, 4-(5-(4-methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)-2'-yl)-, trihydrochloride
phenol, 4-[6-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]-, hydrochloride (1:3)
phenol, 4-[5-(4-methyl-1-piperazinyl)[2,6'-bi-1H-benzimidazol]-2'-yl]-, hydrochloride (1:3)
EINECS 245-690-6
Phenol, 4-[5-(4-methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]-, hydrochloride (1:3)
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