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Allicin
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Product Name Allicin
Price: $50 / 20mg
CAS No.: 539-86-6
Catalog No.: CFN90201
Molecular Formula: C6H10S2O
Molecular Weight: 162.27 g/mol
Purity: >=98%
Type of Compound: Miscellaneous
Physical Desc.: Oil
Source: The bulbs of Allium sativum L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF    Manual
Similar structural: Comparison
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Related Screening Libraries
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Biological Activity
Description: Allicin exerts antioxidant, bactericidal, anti-cancer, anti-inflammatory activities, it exerts an inhibitory immunomodulatory effect on intestinal epithelial cells. Allicin could significantly inhibit vascular smooth muscle cells' proliferation and migration induced by insulin, which may be related to the inhibition of the activation of ERK signal path. Allicin is beneficial in reducing blood cholesterol, triglycerides levels and systolic blood pressure in hypercholesterolemic rats, it may beneficially affect two risk factors for atherosclerosis–hyperlipidemia and hypertension.
Targets: ROS | ERK | p38MAPK | Caspase | IL Receptor | TNF-α | IkB | Antifection | IKK
In vitro:
Int J Food Sci Nutr. 2014 Nov;65(7):868-73.
Allicin protects rat cardiomyoblasts (H9c2 cells) from hydrogen peroxide-induced oxidative injury through inhibiting the generation of intracellular reactive oxygen species.[Pubmed: 24945597]
Oxidative stress is considered an important factor that promotes cell death in response to a variety of pathophysiological conditions. This study investigated the antioxidant properties of Allicin, the principle ingredient of garlic, on preventing oxidative stress-induced injury.
METHODS AND RESULTS:
The antioxidant capacities of Allicin were measured by using 1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay and hydrogen peroxide (H(2)O(2))-induced cell damage on H9c2 cardiomyoblasts. Allicin (0.3-10 μM) pre-incubation could concentration-dependently attenuate the intracellular reactive oxygen species (ROS) increase induced by H(2)O(2) on H9c2 cells. It could also protect H9c2 cells against H(2)O(2)-induced cell damage. However, the DPPH free radical scavenging activity of Allicin was shown to be low.
CONCLUSIONS:
Therefore, it is believed that the protective effect of Allicin on H9c2 cells could inhibit intracellular ROS production instead of scavenging extracellular H(2)O(2) or free radicals. For the observed protective effect on H9c2 cells, Allicin might also be effective in reducing free radical-induced myocardial cell death in ischemic condition.
Food Sci Nutr. 2015 Mar;3(2):158-68.
Analyzing the antibacterial effects of food ingredients: model experiments with allicin and garlic extracts on biofilm formation and viability of Staphylococcus epidermidis.[Pubmed: 25838894]
To demonstrate different effects of garlic extracts and their main antibiotic substance Allicin, as a template for investigations on the antibacterial activity of food ingredients.
METHODS AND RESULTS:
Staphylococcus epidermidis ATCC 12228 and the isogenic biofilm-forming strain ATCC 35984 were used to compare the activity of Allicin against planktonic bacteria and bacterial biofilms. The minimal inhibitory concentration (MIC) and the minimum biofilm inhibitory concentration (MBIC) for pure Allicin were identical and reached at a concentration of 12.5 μg/mL. MBICs for standardized garlic extracts were significantly lower, with 1.56 and 0.78 μg/mL Allicin for garlic water and ethanol extract, respectively. Biofilm density was impaired significantly at a concentration of 0.78 μg/mL Allicin. Viability staining followed by confocal laser scanning microscopy showed, however, a 100% bactericidal effect on biofilm-embedded bacteria at a concentration of 3.13 μg/mL Allicin. qRT-PCR analysis provided no convincing evidence for specific effects of Allicin on biofilm-associated genes.
CONCLUSIONS:
Extracts of fresh garlic are more potent inhibitors of Staphylococcus epidermidis biofilms than pure Allicin, but Allicin exerts a unique bactericidal effect on biofilm-embedded bacteria. The current experimental protocol has proven to be a valid approach to characterize the antimicrobial activity of traditional food ingredients.
FEMS Microbiol Lett. 2015 May;362(9). pii: fnv049.
Allicin from garlic inhibits the biofilm formation and urease activity of Proteus mirabilis in vitro.[Pubmed: 25837813 ]
Several virulence factors contribute to the pathogenesis of Proteus mirabilis.
METHODS AND RESULTS:
This study determined the inhibitory effects of Allicin on urease, hemolysin and biofilm of P. mirabilis ATCC 12453 and its antimicrobial activity against 20 clinical isolates of P. mirabilis. Allicin did not inhibit hemolysin, whereas it did inhibit relative urease activity in both pre-lysed (half-maximum inhibitory concentration, IC50 = 4.15 μg) and intact cells (IC50 = 21 μg) in a concentration-dependent manner. Allicin at sub-minimum inhibitory concentrations (2-32 μg mL(-1)) showed no significant effects on the growth of the bacteria (P > 0.05), but it reduced biofilm development in a concentration-dependent manner (P < 0.001). A higher concentration of Allicin was needed to inhibit the established biofilms. Using the microdilution technique, the MIC90 and MBC90 values of Allicin against P. mirabilis isolates were determined to be 128 and 512 μg mL(-1), respectively.
CONCLUSIONS:
The results suggest that Allicin could have clinical applications in controlling P. mirabilis infections.
Antimicrob Agents Chemother. 1997 Oct;41(10):2286-8.
Allicin from garlic strongly inhibits cysteine proteinases and cytopathic effects of Entamoeba histolytica.[Pubmed: 9333064 ]

METHODS AND RESULTS:
The ability of Entamoeba histolytica trophozoites to destroy monolayers of baby hamster kidney cells is inhibited by Allicin, one of the active principles of garlic. Cysteine proteinases, an important contributor to amebic virulence, as well as alcohol dehydrogenase, are strongly inhibited by Allicin.
In vivo:
Pharm Biol. 2014 Aug;52(8):1009-14.
Allicin enhances chemotherapeutic response and ameliorates tamoxifen-induced liver injury in experimental animals.[Pubmed: 24646302]
Tamoxifen (TAM) is widely used for treatment of hormone-dependent breast cancer; however, it may be accompanied with hepatic injury. Allicin is the most abundant thiosulfinate molecule from garlic with the potential to provide beneficial effects on various diseases. To elucidate the effect of commercially available Allicin on both antitumor activity and liver injury of TAM.
METHODS AND RESULTS:
The cytotoxicity of TAM and/or Allicin was evaluated in vitro using cultured Ehrlich ascites carcinoma (EAC) cells and in vivo against murine tumor (solid) model of EAC. TAM induced liver injury in rats by intraperitoneally (i.p.) injection at a dose of 45 mg/kg, for 7 successive days. TAM at a dose of 3 µM (IC50) significantly decreased percent survival of EAC to 52%. TAM combination with Allicin (5 or 10 µM) showed a significant cytotoxic effect compared with the TAM-treated group as manifested by a decrease in percent survival of EAC to 35% and 29%, respectively. Allicin (10 mg/kg, orally) enhanced the efficacy of TAM (1 mg/kg, i.p.) in mice as manifested by a significant increase in solid tumor growth inhibition by 82% compared with 70% in the TAM group. In rats, TAM intoxication resulted in a significant decline in SOD, GSH, and total protein with significant elevation in TBARS, ALT and AST, ALP, LDH, total bilirubin, γGT, and TNF-α levels. These changes are abrogated by Allicin treatment.
CONCLUSIONS:
The results suggest the beneficial role of Allicin as an adjuvant to TAM in cancer treatment by alleviating liver injury.
J Med Food. 2006 Summer;9(2):205-13.
The antioxidant properties of garlic compounds: allyl cysteine, alliin, allicin, and allyl disulfide.[Pubmed: 16822206 ]
Garlic and garlic extracts, through their antioxidant activities, have been reported to provide protection against free radical damage in the body.
METHODS AND RESULTS:
This study investigated antioxidant properties of garlic compounds representing the four main chemical classes, alliin, allyl cysteine, allyl disulfide, and Allicin, prepared by chemical synthesis or purification. Alliin scavenged superoxide, while allyl cysteine and allyl disulfide did not react with superoxide. Allicin suppressed the formation of superoxide by the xanthine/xanthine oxidase system, probably via a thiol exchange mechanism. Alliin, allyl cysteine, and allyl disulfide all scavenged hydroxyl radicals; the rate constants calculated based on deoxyribose competitive assay were 1.4-1.7 x 10(10), 2.1-2.2 x 10(9), and 0.7-1.5 x 10(10) M (1) second(1), respectively. Contrary to previous reports, Allicin did not exhibit hydroxyl radical scavenging activity in this study. Alliin, Allicin, and allyl cysteine did not prevent induced microsomal lipid peroxidation, but both alliin and allyl cysteine were hydroxyl scavengers, and allyl disulfide was a lipid peroxidation terminator.
CONCLUSIONS:
In summary, our findings indicated that allyl disulfide, alliin, Allicin, and allyl cysteine exhibit different patterns of antioxidant activities as protective compounds against free radical damage.
Allicin Description
Source: The bulbs of Allium sativum L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 6.1626 mL 30.8128 mL 61.6257 mL 123.2514 mL 154.0642 mL
5 mM 1.2325 mL 6.1626 mL 12.3251 mL 24.6503 mL 30.8128 mL
10 mM 0.6163 mL 3.0813 mL 6.1626 mL 12.3251 mL 15.4064 mL
50 mM 0.1233 mL 0.6163 mL 1.2325 mL 2.465 mL 3.0813 mL
100 mM 0.0616 mL 0.3081 mL 0.6163 mL 1.2325 mL 1.5406 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
Protocol
Kinase Assay:
Mol Med Rep. 2015 Apr;11(4):2755-60.
Allicin induces apoptosis of the MGC-803 human gastric carcinoma cell line through the p38 mitogen-activated protein kinase/caspase-3 signaling pathway.[Pubmed: 25523417]
Gastric cancer is one of the most common forms of malignant tumor, and the development of anti‑gastric cancer drugs with minimal toxicity is of clinical importance. Allicin is extracted from Allium sativum (garlic). Recent research, including clinical experiments, has shown that garlic has anticancer and tumor suppressive effects.
METHODS AND RESULTS:
The present study aimed to investigate the effects of Allicin on the MGC‑803 human gastric carcinoma cell line, and to further explore the possible mechanisms of its tumor suppressor effects. The effects of Allicin on the MGC‑803 cells were initially examined using an 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide assay. Hoechst staining was also used, in order to demonstrate the impact of Allicin on MGC‑803 cell apoptosis. In addition, western blot analysis was performed to determine the abnormal expression levels of apoptosis‑associated proteins, following the treatment of MGC‑803 cells with Allicin. Western blotting was also used to investigate the specific mechanisms underlying Allicin‑induced apoptosis of MGC‑803 cells. The rate of MGC‑803 apoptosis was significantly increased, when the concentration and treatment time of Allicin were increased. Hoechst staining detected an enhanced rate of apoptosis, and enhanced expression levels of cleaved caspase 3 were determined by western blotting. Notably, the protein expression levels of p38 were increased when the MGC‑803 cells were treated with Allicin.
CONCLUSIONS:
The results of the present study suggest that Allicin may inhibit the proliferation and induce the apoptosis of MGC‑803 human gastric carcinoma cells, and this may partially be achieved through the enhanced expression of p38 and cleaved caspase 3.
Cell Research:
Clin Nutr. 2004 Oct;23(5):1199-208.
Allicin inhibits spontaneous and TNF-alpha induced secretion of proinflammatory cytokines and chemokines from intestinal epithelial cells.[Pubmed: 15380914 ]
Allicin, the active substance of fresh crushed garlic has different biological activities and was implicated as an anti-inflammatory agent. Epithelial cells have an important role in intestinal inflammation. The aim of this study was to assess the immunomodulatory effect of Allicin on intestinal epithelial cells.
METHODS AND RESULTS:
The spontaneous and TNF-alpha-stimulated secretion of IL-1beta, IL-8, IP-10 and MIG from HT-29 and Caco-2 cells was tested with, or without pretreatment with Allicin. Cytokine secretion was assessed using ELISA and expression of mRNA was determined by an RNA protection assay. Allicin markedly inhibited the spontaneous and TNF-alpha -induced secretion of IL-1beta, IL-8, IP-10 and MIG from the two different cell lines in a dose-dependent manner and suppressed the expression of IL-8 and IL-1beta mRNA levels. In addition, Allicin suppressed the degradation of IkappaB. No effect on cell viability was noted.
CONCLUSIONS:
These observations indicate that Allicin exerts an inhibitory immunomodulatory effect on intestinal epithelial cells and suggest that Allicin may have the potential to attenuate intestinal inflammation.
Animal Research:
Prostaglandins Leukot Essent Fatty Acids. 2000 Apr;62(4):253-9.
Effect of allicin from garlic powder on serum lipids and blood pressure in rats fed with a high cholesterol diet.[Pubmed: 10882191 ]
The use of fresh aqueous garlic extract is known to be effective in reducing thromboxane formation by platelets in both in vivo and in vitro animal models of thrombosis.
METHODS AND RESULTS:
In the present study, we studied the effect of Lichtwer garlic powder (containing 1.3% alliin equivalent to 0.6% Allicin) on the serum cholesterol, triglyceride, glucose, protein, and systolic blood pressure in rats fed with a high cholesterol diet. Experimental rats were fed a 2% high cholesterol diet with and without garlic powder for 6 weeks. Control rats were fed a normal diet. The aqueous garlic powder extract was given orally to rats on a daily basis. It was observed that cholesterol-fed animals had a significant increase in serum cholesterol compared to the control group of rats fed on a normal diet. However, when the rats were fed with a high cholesterol diet mixed with garlic powder, there was a significant reduction in their serum cholesterol levels compared with the group which were on a diet containing high cholesterol without garlic powder. Serum triglyceride levels were also significantly lowered by garlic powder when compared to control and high cholesterol diet group rats. The blood pressure of the high cholesterol diet animals was significantly higher compared to the animals receiving the control diet. The blood pressure of the animals receiving garlic powder and high cholesterol diet was significantly lower as compared to the high cholesterol and control diet group. No significant changes were observed in the serum glucose and protein in all of the rats.
CONCLUSIONS:
These results show that garlic is beneficial in reducing blood cholesterol, triglycerides levels and systolic blood pressure in hypercholesterolemic rats. Our experimental results show that garlic may beneficially affect two risk factors for atherosclerosis--hyperlipidemia and hypertension.
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