Methotrexate

This product is for research use only, not for human use. We do not sell to patients.

Methotrexate
For small sizes, please check our retail website as below: www.invivochem.com
Size Price Stock
5g$480In Stock
10g$750In Stock
20g$1125In Stock

Cat #: V0847 CAS #: 59-05-2 Purity ≥ 98%

Description: Methotrexate (MTX; alphamethopterin; amethopterin; methylaminopterin; CL-14377; NCIC04671; WR19039; NCI-C04671) is an FDA approved antineoplastic and immunosuppressant drug that belongs to the antimetabolite and antifolate class of drugs.

References: Tian H, et al. Understanding the mechanisms of action of methotrexate: implications for the treatment of rheumatoid arthritis. Bull NYU Hosp Jt Dis. 2007;65(3):168-73.

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Product Promise

Promise
Molecular Weight (MW)454.44
Molecular FormulaC20H22N8O5
CAS No.59-05-2
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: 90 mg/mL (198.0 mM)r
Water: <1 mg/mLr
Ethanol: <1 mg/mL
Solubility In Vivo2% DMSO+30% PEG 300+5% Tween 80+ddH2O: 5 mg/mL
SMILES CodeO=C(O)[C@@H](NC(C1=CC=C(N(CC2=NC3=C(N)N=C(N)N=C3N=C2)C)C=C1)=O)CCC(O)=O
Synonymsalphamethopterin; amethopterin; methylaminopterin; CL 14377; NCIC04671; WR19039; WR-19039; WR 19039; MTX; NCI-C04671; NCI C04671; CL14377; CL-14377; Methotrexate
ProtocolIn VivoMethotrexate (Amethopterin) reduces thymus and spleen indices of mice. Methotrexate markedly decreases white blood cells, thymic and splenic lymphocytes at dose ≥5 mg/kg. However, there is a significant difference between the treatment plus control group and the model group (p<0.01). The combination of grape seed proanthocyanidins and Siberian ginseng eleutherosides obviously diminishes the effects of Methotrexate exposure on indices of thymus and spleens in mice.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM2.2005 mL11.0026 mL22.0051 mL44.0102 mL
5mM0.4401 mL2.2005 mL4.4010 mL8.8020 mL
10mM0.2201 mL1.1003 mL2.2005 mL4.4010 mL
20mM0.1100 mL0.5501 mL1.1003 mL2.2005 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
×
Volume
×
Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

Concentration(start)
C1
×
Volume(start)
V1
=
Concentration(final)
C2
×
Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid 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 master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (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.