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  • Product Name: Bufotaline
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  • Purity: 98.0%
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  • Contact: Xueping-Zheng


471-95-4

471-95-4 structure
471-95-4 structure
  • Name: Bufotaline
  • Chemical Name: Bufotaline
  • CAS Number: 471-95-4
  • Molecular Formula: C26H36O6
  • Molecular Weight: 444.560
  • Catalog: Chemical reagent Organic reagent Ester Other ester compounds
  • Create Date: 2018-07-09 19:50:20
  • Modify Date: 2024-01-08 10:23:48
  • Bufotalin is a cardiotoxic bufanolide steroid, cardiac glycoside analogue, secreted by a number of toad species; a novel anti-osteoblastoma agent.IC50 value:Target:in vitro: bufotalin induced osteoblastoma cell death and apoptosis in dose- and time-dependent manners. Further, bufotalin induced endoplasmic reticulum (ER) stress activation in osteoblastoma cells, the latter was detected by the induction of C/EBP homologous protein (CHOP), phosphorylation of inositol-requiring enzyme 1 (IRE1) and PKR-like endoplasmic reticulum kinase (PERK), as well as caspase-12 activation [1]. Bufotalin was the most potent active compound among these four bufadienolides, and it exerted stronger inhibitory effect on the viability of doxorubicin-induced multidrug resistant liver cancer cells (R-HepG2) than that of their parent cells HepG2. bufotalin treatment induced cell cycle arrest at G(2)/M phase through down-regulation of Aurora A, CDC25, CDK1, cyclin A and cyclin B1, as well as up-regulation of p53 and p21. Bufotalin treatment also induced apoptosis which was accompanied by decrease in mitochondrial membrane potential, increases in intracellular calcium level and reactive oxygen species production, activations of caspase-9 and -3, cleavage of poly ADP-ribose polymerase (PARP) as well as changes in the expressions of bcl-2 and bax [2]. Bufotalin promoted death receptor-mediated cell death, especially TRAIL-induced apoptosis, through activation of caspase-3 and PARP-1. Cotreatment of bufotalin with TRAIL resulted in the downregulation of anti-apoptotic proteins, including Bcl-XL, Mcl-1, survivin and XIAP, and the up-regulation of MAPKs and TRAIL receptor DR5. In addition, phosphorylation of STAT1 was strongly inhibited by bufotalin [3]. externalization of phosphatidylserine, accumulation of sub-G(1) cells, fragmentation of DNA, and formation of apoptotic bodies were observed in bufotalin-treated Hep 3B cells [4].

Name Bufotaline
Synonyms Bufotaline
Bufotalin std.
16-(Acetyloxy)-3,14-dihydroxybufa-20,22-dienolide
BUFOTALIN(SH)
BUFOTALIN SULFATE
Bufa-20,22-dienolide, 16-(acetyloxy)-3,14-dihydroxy-, (3β,5β,16β)-
(3b,5b,16b)-16-(Acetyloxy)-3,14-dihydroxybufa-20,22-dienolide
(3S,5R,8R,9S,10S,13R,14S,16S,17R)-3,14-dihydroxy-10,13-dimethyl-17-(2-oxo-2H-pyran-5-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-16-yl acetate
5β-Bufa-20,22-dienolide, 3β,14,16β-trihydroxy-, 16-acetate (8CI)
Bufotalin
3b,14,16b-Trihydroxy-5b-bufa-20,22-dienolide 16-Acetate
(3β,5β,16β)-16-Acetoxy-3,14-dihydroxybufa-20,22-dienolide
Description Bufotalin is a cardiotoxic bufanolide steroid, cardiac glycoside analogue, secreted by a number of toad species; a novel anti-osteoblastoma agent.IC50 value:Target:in vitro: bufotalin induced osteoblastoma cell death and apoptosis in dose- and time-dependent manners. Further, bufotalin induced endoplasmic reticulum (ER) stress activation in osteoblastoma cells, the latter was detected by the induction of C/EBP homologous protein (CHOP), phosphorylation of inositol-requiring enzyme 1 (IRE1) and PKR-like endoplasmic reticulum kinase (PERK), as well as caspase-12 activation [1]. Bufotalin was the most potent active compound among these four bufadienolides, and it exerted stronger inhibitory effect on the viability of doxorubicin-induced multidrug resistant liver cancer cells (R-HepG2) than that of their parent cells HepG2. bufotalin treatment induced cell cycle arrest at G(2)/M phase through down-regulation of Aurora A, CDC25, CDK1, cyclin A and cyclin B1, as well as up-regulation of p53 and p21. Bufotalin treatment also induced apoptosis which was accompanied by decrease in mitochondrial membrane potential, increases in intracellular calcium level and reactive oxygen species production, activations of caspase-9 and -3, cleavage of poly ADP-ribose polymerase (PARP) as well as changes in the expressions of bcl-2 and bax [2]. Bufotalin promoted death receptor-mediated cell death, especially TRAIL-induced apoptosis, through activation of caspase-3 and PARP-1. Cotreatment of bufotalin with TRAIL resulted in the downregulation of anti-apoptotic proteins, including Bcl-XL, Mcl-1, survivin and XIAP, and the up-regulation of MAPKs and TRAIL receptor DR5. In addition, phosphorylation of STAT1 was strongly inhibited by bufotalin [3]. externalization of phosphatidylserine, accumulation of sub-G(1) cells, fragmentation of DNA, and formation of apoptotic bodies were observed in bufotalin-treated Hep 3B cells [4].
Related Catalog
References

[1]. Zhu YR, et al. Bufotalin-induced apoptosis in osteoblastoma cells is associated with endoplasmic reticulum stress activation. Biochem Biophys Res Commun. 2014 Aug 15;451(1):112-8.

[2]. Zhang DM, et al. Bufotalin from Venenum Bufonis inhibits growth of multidrug resistant HepG2 cells through G2/M cell cycle arrest and apoptosis. Eur J Pharmacol. 2012 Oct 5;692(1-3):19-28.

[3]. Waiwut P, et al. Bufotalin sensitizes death receptor-induced apoptosis via Bid- and STAT1-dependent pathways. Int J Oncol. 2012 Jan;40(1):203-8.

[4]. Su CL, et al. Involvement of caspases and apoptosis-inducing factor in bufotalin-induced apoptosis of Hep 3B cells. J Agric Food Chem. 2009 Jan 14;57(1):55-61.

Density 1.3±0.1 g/cm3
Boiling Point 591.7±50.0 °C at 760 mmHg
Melting Point 223°C (rough estimate)
Molecular Formula C26H36O6
Molecular Weight 444.560
Flash Point 195.8±23.6 °C
Exact Mass 444.251190
PSA 96.97000
LogP 2.54
Vapour Pressure 0.0±3.8 mmHg at 25°C
Index of Refraction 1.587

CHEMICAL IDENTIFICATION

RTECS NUMBER :
EI3150000
CHEMICAL NAME :
5-beta-Bufa-20,22-dienolide, 3-beta,14,16-beta-trihydroxy-, 16-acetate
CAS REGISTRY NUMBER :
471-95-4
LAST UPDATED :
199109
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C26-H36-O6
MOLECULAR WEIGHT :
444.62
WISWESSER LINE NOTATION :
L E5 B666TJ A1 E1 GOV1 IQ OQ F- ET6OVJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
400 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher information, see JTCTDW. Volume(issue)/page/year: 4,331,1971
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4130 ug/kg
TOXIC EFFECTS :
Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Behavioral - antipsychotic
REFERENCE :
CPBTAL Chemical and Pharmaceutical Bulletin. (Japan Pub. Trading Co., USA, 1255 Howard St., San Francisco, CA 94103) V.6- 1958- Volume(issue)/page/year: 24,1714,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1131 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PHUZBI Pharmazie in Unserer Zeit. (VCH Pub., Inc., 303 N.W. 12th Ave., Deerfield Beach, FL 33441) V.1- 1972- Volume(issue)/page/year: 13,129,1984
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
980 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849- Volume(issue)/page/year: 152,571,1958
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
360 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849- Volume(issue)/page/year: 152,571,1958
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - cat
DOSE/DURATION :
136 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 74,223,1942
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Mammal - cat
DOSE/DURATION :
130 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PHUZBI Pharmazie in Unserer Zeit. (VCH Pub., Inc., 303 N.W. 12th Ave., Deerfield Beach, FL 33441) V.1- 1972- Volume(issue)/page/year: 13,129,1984
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Amphibian - frog
DOSE/DURATION :
1200 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AEXPBL Archiv fuer Experimentelle Pathologie und Pharmakologie. (Leipzig, Ger. Dem. Rep.) V.1-109, 1873-1925. For publisher information, see NSAPCC. Volume(issue)/page/year: 86,138,1920
RIDADR UN 3172
Packaging Group II
Hazard Class 6.1(a)
HS Code 29329990