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  4. Polyoxyl 40 stearate

Polyoxyl 40 stearate  (Synonyms: PEG 40 stearate)

Cat. No.: HY-101530B Purity: ≥98.0%
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Polyoxyl 40 stearate can be used as an excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs.

For research use only. We do not sell to patients.

Polyoxyl 40 stearate Chemical Structure

Polyoxyl 40 stearate Chemical Structure

CAS No. : 171286-89-8

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Based on 1 publication(s) in Google Scholar

Other Forms of Polyoxyl 40 stearate:

Polyoxyl 40 stearate Related Antibodies

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Description

Polyoxyl 40 stearate can be used as an excipient. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs[1].

Molecular Weight

2046.58

Formula

C98H196O42
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)CCCCCCCCCCCCCCCCC
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Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 175 mg/mL (85.51 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.4886 mL 2.4431 mL 4.8862 mL
5 mM 0.0977 mL 0.4886 mL 0.9772 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 0.4886 mL 2.4431 mL 4.8862 mL 12.2155 mL
5 mM 0.0977 mL 0.4886 mL 0.9772 mL 2.4431 mL
10 mM 0.0489 mL 0.2443 mL 0.4886 mL 1.2216 mL
15 mM 0.0326 mL 0.1629 mL 0.3257 mL 0.8144 mL
20 mM 0.0244 mL 0.1222 mL 0.2443 mL 0.6108 mL
25 mM 0.0195 mL 0.0977 mL 0.1954 mL 0.4886 mL
30 mM 0.0163 mL 0.0814 mL 0.1629 mL 0.4072 mL
40 mM 0.0122 mL 0.0611 mL 0.1222 mL 0.3054 mL
50 mM 0.0098 mL 0.0489 mL 0.0977 mL 0.2443 mL
60 mM 0.0081 mL 0.0407 mL 0.0814 mL 0.2036 mL
80 mM 0.0061 mL 0.0305 mL 0.0611 mL 0.1527 mL
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Polyoxyl 40 stearate Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Polyoxyl 40 stearate171286-89-8PEG 40 stearateBiochemical Assay Reagentspharmaceutical excipientpharmaceutical auxiliariepharmaceutical ingredientsinactive ingredientsstabilitysolubilityprocessabilityabsorptiondistributionmetabolismand elimination (ADME)Inhibitorinhibitorinhibit

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