PeptideDB

Dalargin 81733-79-1

Dalargin 81733-79-1

CAS No.: 81733-79-1

Dalargin is a potent δ-opioid receptor agonist. Dalargin attenuates Gentamicin-induced cell death. Dalargin exerts neph
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Dalargin is a potent δ-opioid receptor agonist. Dalargin attenuates Gentamicin-induced cell death. Dalargin exerts nephroprotective effects against gentamicin-induced renal injury. Dalargin has anti-ulcer activity.

Physicochemical Properties


Molecular Formula C35H51N9O8
Molecular Weight 725.83
Exact Mass 725.386
CAS # 81733-79-1
PubChem CID 6917894
Appearance White to off-white solid powder
Density 1.363g/cm3
LogP 5.066
Hydrogen Bond Donor Count 10
Hydrogen Bond Acceptor Count 10
Rotatable Bond Count 21
Heavy Atom Count 52
Complexity 1210
Defined Atom Stereocenter Count 5
SMILES

C[C@H](C(=O)NCC(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)O)NC(=O)[C@H](CC2=CC=C(C=C2)O)N

InChi Key GDPHPXYFLPDZGH-XBTMSFKCSA-N
InChi Code

InChI=1S/C35H51N9O8/c1-20(2)16-27(32(49)43-26(34(51)52)10-7-15-39-35(37)38)44-33(50)28(18-22-8-5-4-6-9-22)42-29(46)19-40-30(47)21(3)41-31(48)25(36)17-23-11-13-24(45)14-12-23/h4-6,8-9,11-14,20-21,25-28,45H,7,10,15-19,36H2,1-3H3,(H,40,47)(H,41,48)(H,42,46)(H,43,49)(H,44,50)(H,51,52)(H4,37,38,39)/t21-,25+,26+,27+,28+/m1/s1
Chemical Name

(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[(2R)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoic 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

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


Targets δ Opioid Receptor/DOR
ln Vitro In vitro, gentamicin-induced renal epithelial cell death is attenuated by dalagin (100 µg/mL; 1 h) [2].
ln Vivo Rats exposed to gentamicin-induced renal damage demonstrate renoprotective effects when given dalaglinin (25, 50 µg/kg; ip)[2].
Cell Assay Cell Viability Assay[2]
Cell Types: Kidney cells
Tested Concentrations: 100 µg/mL
Incubation Duration: 1 h (prior to treatment with 1.2–2.5 mg/ml gentamicin for 24 h)
Experimental Results: diminished kidney cell death.
Animal Protocol Animal/Disease Models: 290-350 g, White male rats[2]
Doses: 25, 50 µg/kg
Route of Administration: Ip (3 h before each gentamicin injection)
Experimental Results: Mitigated gentamicin-induced acute kidney injury, attenuated ROS generation and oxidative stress, alleviated histopathological changes in a renal tissue.
References

[1]. Dalargin--a peptidnyĭ preparat s tsitoprotektivnym deĭstviem [Dalargin--a peptide preparation with cytoprotective action]. Biull Vsesoiuznogo Kardiol Nauchn Tsentra AMN SSSR. 1985;8(2):72-6.

[2]. Nephroprotective effect of GSK-3β inhibition by lithium ions and δ-opioid receptor agonist dalargin on gentamicin-induced nephrotoxicity. Toxicol Lett. 2013 Jul 18;220(3):303-8.

[3]. Mesto prilozheniia (tsentral'noe ili perifericheskoe) protivoiazvennogo deĭstviia sinteticheskogo analoga éndogennykh opioidov dalargina v éksperimental'noĭ modeli tsisteaminovykh duodenal'nykh iazv u krys [The site (central or peripheral) of the anti-ulcer action of dalargin, a synthetic analog of endogenous opioids in an experimental model of cysteamine-induced duodenal ulcer in rats]. Biull Eksp Biol Med. 1987 Apr;103(4):433-4.


Solubility Data


Solubility (In Vitro) May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.3777 mL 6.8887 mL 13.7773 mL
5 mM 0.2755 mL 1.3777 mL 2.7555 mL
10 mM 0.1378 mL 0.6889 mL 1.3777 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.