Date published: 2026-5-13

1-800-457-3801

SCBT Portrait Logo
Seach Input

Methotrexate hydrate (CAS 133073-73-1)

5.0(1)
Write a reviewAsk a question

Alternate Names:
4-Amino-10-methylfolic acid hydrate; L-Amethopterin hydrate; Antifolan hydrate; Methylaminopterin hydrate
Application:
Methotrexate hydrate is a cell cycle arrest agent that inhibits DHFR and modulates inflammation
CAS Number:
133073-73-1
Purity:
≥98%
Molecular Weight:
454.44 (anhydrous basis)
Molecular Formula:
C20H22N8O5•xH2O
Supplemental Information:
This is as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

QUICK LINKS

Methotrexate hydrate functions as an antimetabolite by inhibiting the enzyme dihydrofolate reductase, which is essential for the synthesis of purines and pyrimidines. By doing so, it disrupts the production of DNA and RNA, ultimately interfering with cellular proliferation. Methotrexate hydrate acts as an immunosuppressant by inhibiting the synthesis of tetrahydrofolic acid, which is necessary for the proliferation of T cells. Methotrexate hydrate exerts its influence on cellular processes by disrupting the folate pathway, leading to the accumulation of toxic metabolites and the inhibition of DNA synthesis. This disruption ultimately leads to the suppression of immune responses and the inhibition of cancer cell growth. Methotrexate hydrate induces apoptosis in cancer cells by interfering with the production of nucleotides, which are essential for DNA replication and repair. Methotrexate hydrate′s mechanism of action involves targeting key cellular processes, such as DNA and RNA synthesis, as well as immune cell proliferation, ultimately leading to its antimetabolic and immunosuppressive effects.


Methotrexate hydrate (CAS 133073-73-1) References

  1. Mutation rates in the dihydrofolate reductase gene of Plasmodium falciparum.  |  Paget-McNicol, S. and Saul, A. 2001. Parasitology. 122: 497-505. PMID: 11393822
  2. Interaction of dihydrofolate reductase with methotrexate: ensemble and single-molecule kinetics.  |  Rajagopalan, PT., et al. 2002. Proc Natl Acad Sci U S A. 99: 13481-6. PMID: 12359872
  3. Clinical experience of methotrexate in Crohn's disease: response, safety and monitoring of treatment.  |  Parker, R., et al. 2010. Postgrad Med J. 86: 208-11. PMID: 20354043
  4. The effect of ABCG2 and ABCC4 on the pharmacokinetics of methotrexate in the brain.  |  Sane, R., et al. 2014. Drug Metab Dispos. 42: 537-40. PMID: 24464805
  5. Direct assay of uroporphyrin and coproporphyrin in human urine by reverse-mode field amplified sample injection-sweeping and micellar electrokinetic chromatography.  |  Chen, YL., et al. 2015. Talanta. 143: 27-34. PMID: 26078124
  6. Automation of high CHO cell density seed intensification via online control of the cell specific perfusion rate and its impact on the N-stage inoculum quality.  |  Schulze, M., et al. 2021. J Biotechnol. 335: 65-75. PMID: 34090946
  7. Effect of antiarthritic drugs on the enhanced interleukin-1 (IL-1) production by macrophages from adjuvant-induced arthritic (AA) rats.  |  DiMartino, MJ., et al. 1987. Agents Actions. 21: 348-50. PMID: 3500597
  8. Polymerization of tubulin in apoptotic cells is not cell cycle dependent.  |  Pittman, SM., et al. 1994. Exp Cell Res. 215: 263-72. PMID: 7982469
  9. Antifolate analogs: mechanism of action, analytical methodology, and clinical efficacy.  |  Fleisher, M. 1993. Ther Drug Monit. 15: 521-6. PMID: 8122287
  10. Cell-cycle-stage specificity of the methotrexate block as resolved by X-ray-induced chromosome damage.  |  Richardson, VB., et al. 1994. Cytogenet Cell Genet. 66: 126-8. PMID: 8287684
  11. Characteristics of cancer cell death after exposure to cytotoxic drugs in vitro.  |  Huschtscha, LI., et al. 1996. Br J Cancer. 73: 54-60. PMID: 8554984
  12. New approaches to the treatment of advanced breast cancer.  |  Eckardt, JR. 1996. Anticancer Drugs. 7 Suppl 2: 41-6. PMID: 8862711
  13. The mechanism of action of methotrexate.  |  Cronstein, BN. 1997. Rheum Dis Clin North Am. 23: 739-55. PMID: 9361153

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Methotrexate hydrate, 100 mg

sc-215309
100 mg
$58.00

Methotrexate hydrate, 500 mg

sc-215309A
500 mg
$142.00

Methotrexate hydrate, 1 g

sc-215309B
1 g
$183.00

Methotrexate hydrate, 5 g

sc-215309C
5 g
$561.00

What is the solubility of MTX in DMSO?

Asked by: jayne
Thank you for your question. This compound is soluble in DMSO at up to 90 mg/ml. Fresh DMSO should be used for highest solubility.
Answered by: Tech Support Europe
Date published: 2024-10-23

What is the appearance of the compound?

Asked by: two2igm05
Thank you for your question. Methotrexate trihydrate, sc-215309, is a yellow crystalline powder in its appearance.
Answered by: TechService7
Date published: 2017-01-04

What is the purity of the chemical? Is this compound tissue culture grade?

Asked by: two2igm05
Thank you for your question. Methotrexate trihydrate, sc-215309, has a purity above 99%+, but it's not tissue culture grade.
Answered by: TechService7
Date published: 2017-01-04
  • y_2026, m_5, d_12, h_14CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_215309, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 104ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from DiMartino et alDiMartino et al. (PubMed ID 3500597) found that methotrexate trihydrate inhibited hindpaw edema in adjuvant-induced arthritic (AA) rats by decreasing IL-1 production of splenic adherent cells. -SCBT Publication Review
Date published: 2015-03-18
  • y_2026, m_5, d_12, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_215309, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 16ms
  • REVIEWS, PRODUCT
Methotrexate hydrate is rated 5.0 out of 5 by 1.
  • y_2026, m_5, d_12, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_215309, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 133ms
  • REVIEWS, PRODUCT