Physicochemical Properties
| Molecular Formula | C106H184N40O26 |
| Exact Mass | 2287.365 |
| CAS # | 172998-24-2 |
| PubChem CID | 16130573 |
| Appearance | Typically exists as solid at room temperature |
| LogP | -10.9 |
| Hydrogen Bond Donor Count | 41 |
| Hydrogen Bond Acceptor Count | 33 |
| Rotatable Bond Count | 83 |
| Heavy Atom Count | 161 |
| Complexity | 4910 |
| Defined Atom Stereocenter Count | 19 |
| SMILES | C[C@H]([C@@H](C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(=O)N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC2=CN=CN2)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CCCCN)C(=O)O)N)O |
| InChi Key | LWUHOMXMYZUNOI-SJQMMDBASA-N |
| InChi Code | InChI=1S/C97H175N39O25/c1-47(2)37-62(122-71(142)42-117-75(143)52(11)120-76(144)56(23-16-32-113-94(103)104)125-85(153)66(44-137)133-86(154)67(45-138)132-79(147)59(26-19-35-116-97(109)110)126-88(156)72(100)53(12)139)81(149)127-60(28-29-69(99)140)91(159)136-36-20-27-68(136)87(155)135-73(50(7)8)89(157)118-43-70(141)121-55(22-15-31-112-93(101)102)80(148)134-74(51(9)10)90(158)131-65(40-54-41-111-46-119-54)84(152)124-58(25-18-34-115-96(107)108)78(146)129-64(39-49(5)6)83(151)130-63(38-48(3)4)82(150)123-57(24-17-33-114-95(105)106)77(145)128-61(92(160)161)21-13-14-30-98/h41,46-53,55-68,72-74,137-139H,13-40,42-45,98,100H2,1-12H3,(H2,99,140)(H,111,119)(H,117,143)(H,118,157)(H,120,144)(H,121,141)(H,122,142)(H,123,150)(H,124,152)(H,125,153)(H,126,156)(H,127,149)(H,128,145)(H,129,146)(H,130,151)(H,131,158)(H,132,147)(H,133,154)(H,134,148)(H,135,155)(H,160,161)(H4,101,102,112)(H4,103,104,113)(H4,105,106,114)(H4,107,108,115)(H4,109,110,116)/t52-,53+,55-,56-,57-,58-,59-,60-,61-,62-,63-,64-,65-,66-,67-,68-,72-,73-,74-/m0/s1 |
| Chemical Name | (2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-1-[(2S)-5-amino-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-amino-3-hydroxybutanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-hydroxypropanoyl]amino]-3-hydroxypropanoyl]amino]-5-carbamimidamidopentanoyl]amino]propanoyl]amino]acetyl]amino]-4-methylpentanoyl]amino]-5-oxopentanoyl]pyrrolidine-2-carbonyl]amino]-3-methylbutanoyl]amino]acetyl]amino]-5-carbamimidamidopentanoyl]amino]-3-methylbutanoyl]amino]-3-(1H-imidazol-5-yl)propanoyl]amino]-5-carbamimidamidopentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]hexanoic acid |
| HS Tariff Code | 2934.99.9001 |
| Storage |
Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light. |
| Shipping Condition | Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs) |
Biological Activity
| ln Vitro | Buforin II suppresses A. multiresistant strains and baumanniiATCC 19606 with comparable MIC values of 8 mg/L[1]. |
| ln Vivo | In a male Wistar rat model of sepsis, buforin II (intravenously administered as a single dose at 1 mg/kg) has strong antibacterial activity that successfully lowers lethality and results in a marked decrease in plasma endotoxin and cytokine concentrations[1]. |
| Animal Protocol |
Animal/Disease Models: Male Wistar rats weighing 200 to 300 g with A. baumannii ATCC 19606[1] Doses: 1 mg/kg Route of Administration: intravenously (iv) a single dose Experimental Results: diminished mortality by 40% in the treatment group and by 20% in the rifampicin (10 mg/kg) combination group. diminished TNF, IL-6 and endotoxin plasma levels by 33%, 25% and 32%, respectively. Animal/Disease Models: Male Wistar rats weighing 200 to 300 g with the multiresistant strain[1] Doses: 1 mg/kg Route of Administration: intravenously (iv) a single dose Experimental Results: diminished mortality by 46.6% in the treatment group and by 20% in the rifampicin (10 mg/kg) combination group. diminished TNF, IL-6 and endotoxin plasma levels by 46%, 20% and 28%, respectively. |
| References |
[1]. Therapeutic efficacy of buforin II and rifampin in a rat model of Acinetobacter baumannii sepsis. Crit Care Med. 2009 Apr;37(4):1403-7. |
Solubility Data
| Solubility (In Vitro) | H2O : 100 mg/mL (41.07 mM) |
| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently. (Please use freshly prepared in vivo formulations for optimal results.) |