Home Prohomone 99.9% Purity Bulking Steroid Tacrolimus 104987-11-3
99.9% Purity Bulking Steroid Tacrolimus 104987-11-3

99.9% Purity Bulking Steroid Tacrolimus 104987-11-3

CAS 104987-11-3
M.F. C44H69NO12 ·H2O
Appearance White Powder
Shipping Cost Always $40
Payment Method MG, WU, BTC
Delivery Guranteed
Purity 98%-99%
Package Disguised
Category: .


Pure Health 99% Immune Suppressant Steroid 104987-11-3 Anti Inflammatory Tacrolimus

Tacrolimus——-Basic Information

Tacrolimus Product ID: E-0119
CAS Number 104987-11-3
Alias Name Fujimycin
Purity (HPLC) ≥98%
Molecular Formula C44H69NO12 ·H2O
Molecular Weight (g/mol) 822.02
General Source Streptomyces tsukubaensis
Product Appearance White Powder
Chemical Family macrolides antibiotics
Package Size 10mg/20mg/500mg/1g/10g standard packing or according to customers’ requirement

Tacrolimus——-What Is Tacrolimus?

“Tacrolimus” is a descriptor in the National Library of Medicine’s controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

Tacrolimus,A macrolide isolated from the culture broth of a strain of Streptomyces tsukubaensis that has strong immunosuppressive activity in vivo and prevents the activation of T-lymphocytes in response to antigenic or mitogenic stimulation in vitro.

Tacrolimus (also FK-506 or Fujimycin) is an immunosuppressive drug whose main use is after organ transplant to reduce the activity of the patient’s immune system and so the risk of organ rejection. It is also used in a topical preparation in the treatment of severe atopic dermatitis, severe refractory uveitis after bone marrow transplants, and the skin condition vitiligo.

Tacrolimus is chemically known as a macrolide. It reduces peptidyl-prolyl isomerase activity by binding to the immunophilin FKBP-12 (FK506 binding protein) creating a new complex. This FKBP12-FK506 complex interacts with and inhibits calcineurin thus inhibiting both T-lymphocyte signal transduction and IL-2 transcription.

Tacrolimus is used together with other medicines to prevent the body from rejecting a transplanted organ (eg, kidney, liver, or heart). This medicine may be used with steroids, azathioprine, basiliximab, or mycophenolate mofetil. Tacrolimus belongs to a group of medicines known as immunosuppressive agents.

Tacrolimus is a very strong medicine. It can cause side effects that can be very serious, such as kidney problems. It may also decrease the body’s ability to fight infections. You and your doctor should talk about the benefits of this medicine as well as the risks of using it.

Tacrolimus——-Mechanism of action

Tacrolimus,The mechanism of action of tacrolimus in atopic dermatitis is not known. While the following have been observed, the clinical significance of these observations in atopic dermatitis is not known. It has been demonstrated that tacrolimus inhibits T-lymphocyte activation by first binding to an intracellular protein, FKBP-12.

Tacrolimus,A complex of tacrolimus-FKBP-12, calcium, calmodulin, and calcineurin is then formed and the phosphatase activity of calcineurin is inhibited. This prevents the dephosphorylation and translocation of nuclear factor of activated T-cells (NF-AT), a nuclear component thought to initiate gene transcription for the formation of lymphokines.

Tacrolimus also inhibits the transcription for genes which encode IL-3, IL-4, IL-5, GM-CSF, and TNF-, all of which are involved in the early stages of T-cell activation. Additionally, tacrolimus has been shown to inhibit the release of pre-formed mediators from skin mast cells and basophils, and to downregulate the expression of FceRI on Langerhans cells.


Product name Tacrolimus
CAS No. 109581-93-3 Outer Packing 1KG/drum
Standard adopted Enterprise Standard
Items of analysis Specification Results
Description White or off- white powder Off- white powder
Identification (IR) Should match with working standard Complies
Solubility Complies
Melting point 246.0~252.0ºC 246.0ºC~248.0ºC
Water by KF Not more than 0.5% 0.14%
Loss on drying Not more than 0.5% 0.17%
Residue on ignition Not more than 0.2% 0.05%
Heavy Metals Not more than 20ppm Complies
Single maximum impurity Not more than 0.5% 0.34%
Total impurities Not more than 1.0% 0.66%
Assay by HPLC 98.0% -102.0% 101.0%
Conclusion Qualified

Tacrolimus ———Usages

Tacrolimus,Tacroz Forte Ointment (Tacrolimus) is used to treat atopic dermatitis (more commonly known as eczema). It is a topical medication which is normally prescribed for patients who have not responded successfully to other eczema medication.

Tacrolimus,The ointment is a type of topical calcineurin inhibitor (TCIs) that works by weakening the patient`s immune system, which as a consequence directly reduces the severity of eczema and its symptoms. It should not be used by patients who have any kind of weak immune system.

Tacroz Forte Ointment (Tacrolimus) is applied directly to the affected skin. Patients are normally advised to apply the ointment twice a day for a period of approximately 6 weeks in length. If no changes or improvements to your condition occur after this period, consult your physician to discuss how best to go forward.