Size | Price | |
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100mg |
Toxicity/Toxicokinetics |
Toxicity Summary
Oral LD50 value of docosanoic acid for rats is greater than 2,000 mg/kg. There are no available data for irritation and sensitization. In an oral study using the OECD combined repeated dose and reproductive/developmental toxicity test [OECD TG 422], docosanoic acid was administered to rats at doses of 0, 100, 300, 1,000 mg/kg/day for at least 42 days . No deaths occurred and also no substance related toxic effects were observed in any parameters. Therefore, the NOAEL is considered to be 1,000 mg/kg/day for both repeated dose toxicity and reproductive/developmental toxicity. The chemical was negative in both a bacterial mutation test [OECD TG 471, 472] and a chromosomal aberration test in vitro [OECD TG 473]. ... Acute toxicity values of docosanoic acid on alga (Selenastrum capricornutum), aquatic invertebrate (Daphnia magna) or fish (Oryzias latipes) are greater than its water solubility (0.016 mg/L). The NOEC in a 21-day reproduction test with Daphnia magna is also greater than its water solubility. No significant effects are observed in any tests conducted at extremely high concentrations by using dispersant under OECD test guidelines [TG201, 202, 203, 204, or 211]. There is information that some fatty acids with shorter carbon chain caused no mortality at saturated concentration in certain aquatic organisms (gammarus in freshwater; Medaka in seawater condition). Considering from these data and additional information, it is reasonable to assume that docosanoic acid is not toxic to aquatic organisms at the concentration less than its water solubility (0.016 mg/L). A PNEC is not calculated since NOEC values obtained are above the water solubility of the substance. Interactions THE BLOOD PLATELET AGGREGATING EFFECT OF BEHENIC ACID ON WASHED PIG BLOOD PLATELETS WAS ENHANCED BY THE ADDITION OF CALCIUM IONS. LINOLENIC ACID COMPLETELY INHIBITED THE EFFECT OF BEHENIC ACID WHEN BOTH WERE ADDED IN EQUIMOLAR CONCENTRATIONS. Non-Human Toxicity Values LD50 Rats oral >2,000 mg/kg /Purity 85.9 %; Impurities: (C14-C20) fatty acids 10.9 %, C24 fatty acid 2.3 %/ |
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References | |
Additional Infomation |
Docosanoic acid is a straight-chain, C22, long-chain saturated fatty acid. It has a role as a plant metabolite. It is a straight-chain saturated fatty acid and a long-chain fatty acid. It is a conjugate acid of a behenate.
Docosanoic acid has been reported in Calodendrum capense, Arisaema tortuosum, and other organisms with data available. Behenic Acid is a saturated very long-chain fatty acid with a 22-carbon backbone. Behenic acid is a major component of ben oil, extracted from the seeds of the moringa tree. See also: Borage Seed Oil (part of). |
Molecular Formula |
C22H44O2
|
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Molecular Weight |
340.5836
|
Exact Mass |
340.334
|
CAS # |
112-85-6
|
Related CAS # |
16529-65-0 (zinc salt);18990-72-2 (aluminum salt);20259-31-8 (iron(+3) salt);2489-05-6 (silver(+1) salt);2636-16-0 (barium salt);34303-23-6 (cadmium salt);4499-91-6 (lithium salt);5331-77-1 (hydrochloride salt);7211-53-2 (potassium salt)
|
PubChem CID |
8215
|
Appearance |
Off-white to light yellow solid powder
|
Density |
0.9±0.1 g/cm3
|
Boiling Point |
391.8±5.0 °C at 760 mmHg
|
Melting Point |
72-80 °C(lit.)
|
Flash Point |
176.3±12.5 °C
|
Vapour Pressure |
0.0±0.9 mmHg at 25°C
|
Index of Refraction |
1.459
|
LogP |
10.34
|
Hydrogen Bond Donor Count |
1
|
Hydrogen Bond Acceptor Count |
2
|
Rotatable Bond Count |
20
|
Heavy Atom Count |
24
|
Complexity |
250
|
Defined Atom Stereocenter Count |
0
|
InChi Key |
UKMSUNONTOPOIO-UHFFFAOYSA-N
|
InChi Code |
InChI=1S/C22H44O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h2-21H2,1H3,(H,23,24)
|
Chemical Name |
docosanoic acid
|
HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage. |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
Solubility (In Vitro) |
DMSO : ~1.43 mg/mL (~4.20 mM)
H2O : ~1 mg/mL (~2.94 mM) |
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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
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *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). View More
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)] 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). View More
Oral Formulation 3: Dissolved in PEG400  (Please use freshly prepared in vivo formulations for optimal results.) |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.9362 mL | 14.6808 mL | 29.3617 mL | |
5 mM | 0.5872 mL | 2.9362 mL | 5.8723 mL | |
10 mM | 0.2936 mL | 1.4681 mL | 2.9362 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.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.