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Tacrolimus Monohydrate 109581-93-3 CAS NO.109581-93-3
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T,Other
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- Product Details
Keywords
- 15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone,5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[(1E)-2-[(1R,3R,4R)-4-hydroxy-3-methoxycycl
- Tacrolimus
- Tsukubaenolide hydrate
Quick Details
- ProName: Tacrolimus Monohydrate
- CasNo: 109581-93-3
- Molecular Formula: C44H69NO12.H2O
- Appearance: White crystallization
- Application: oral anticoagulant drug
- DeliveryTime: in two weeks
- PackAge: 25kg/drum
- Port: SHANGHAI BEIJING
- ProductionCapacity: 10 Metric Ton/Day
- Purity: USP/EP/BP
- Storage: room temperature
- Transportation: AIR SEA TRAIN
- LimitNum: 1 Kilogram
Superiority
| Product Name: | Tacrolimus |
| Synonyms: | (2-propenyl)-,(3s-(3r*(e(1s*,3s*,4s*)),4s*,5r*,8s*,9e,12r*,14r*,15s*,16r*,18s*;,19s*,26ar*))-;16-dimethoxy-4,10,12,18-tetramethyl-8-3-(2-(4-hydroxy-3-methoxycyclohexyl)-1;15,19-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclotricosine-1,7,20,21(4H,23H)-tetrone, 5,6,8,11,12,13,14,15,16,17,18,19,24,25,26,26a-hexadecahydro-5,19-dihydroxy-3-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylethenyl]-14,16-dimethoxy-4,10,12,18-tetramethyl-8-(2-propenyl)-, [3S-[3R*[E(1S*,3S*,4S*)],4S*,5R*,8S*,9E,12R*,14R*,15S*,16R*,18S*,19S*,26aR*]]-;L 679934;Protopic;FK-506：FR-900506;Fujimycin Prozraf |
| CAS: | 104987-11-3 |
| MF: | C44H69NO12 |
| MW: | 804.02 |
| EINECS: | 1308068-626-2 |
| Product Categories: | Inhibitors;API;Active Pharmaceutical Ingredients;Immunosuppressant.;Chiral Reagents;Fujimycin, Prograf;Intermediates & Fine Chemicals;Pharmaceuticals;antibiotic;APIs;104987-11-3 |
| Mol File: | 104987-11-3.mol |
| Tacrolimus Chemical Properties |
| Melting point | 113-115°C |
| Boiling point | 871.7±75.0 °C(Predicted) |
| density | 1.19±0.1 g/cm3(Predicted) |
| Fp | 2℃ |
| storage temp. | Sealed in dry,Store in freezer, under -20°C |
| solubility | DMSO: >3 mg/mL |
| form | solid |
| pka | 9.97±0.70(Predicted) |
| color | white |
| optical activity | +62.223 (CHCl3) |
| Water Solubility | Freely soluble in DMSO or ethanol. Poorly soluble in water.Soluble in dimethyl sulfoxide, ethanol, water, acetone, chloroform, ethyl acetate, ether, methanol and dimethyl formamide. |
| BCS Class | 2 |
| Stability: | Stable for 2 years from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 2 months. |
| InChIKey | QJJXYPPXXYFBGM-LFZNUXCKSA-N |
| CAS DataBase Reference | 104987-11-3(CAS DataBase Reference) |
Details
| Tacrolimus Usage And Synthesis |
| Overview | 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 was first extracted from the fermentation broth of Streptomyces tsukuba, a soil microbe found in Tsukuba, Japan.1 The name tacrolimus is derived by taking the ‘t’ for Tsukuba, the name of the mountain where the soil sample was extracted, ‘acrol’ for macrolide and ‘imus’ for immunosuppressant.[2] Although structurally unrelated to cyclosporin, tacrolimus shows a similar spectrum of immunosuppressive effects to this agent at the cellular and molecular level. Initial studies indicated that tacrolimus was a powerful immunosuppressant, displaying approximately 100-fold greater in vitro potency than cyclosporin in inhibiting T cell activation. Subsequent in vivo studies have shown tacrolimus to be effective both in suppressing spontaneous and experimental autoimmune disease, and in preventing allograft and xenograft rejection in animal models of organ transplantation. Initially, tacrolimus was used for systemic immunosuppression of patients who had undergone allograft transplants to stop them from rejecting their new grafts. Soon, however, through the benefit of the serendipity of science, it was noticed that tacrolimus could produce favorable results in skin disorders in some of the patients who had undergone transplantation. The discovery of tacrolimus has thus lead to greater understanding of skin pathology, for example of atopic dermatitis.[3] Subsequently, other topical applications of tacrolimus were reported and the use of this agent in dermatology is gradually expanding. Figure 1 The chemical structure of Tacrolimus |
| Indication and administrations | It is used after allogenic organ transplant to reduce the activity of the patient's immune system and so the risk of organ rejection. It was first approved by the FDA in 1994 for use in liver transplantation, this has been extended to include kidney, heart, small bowel, pancreas, lung, trachea, skin, cornea, and limb transplants. It has also been used in a topical preparation in the treatment of severe atopic dermatitis. |
| Pharmacodynamics | Tacrolimus was absorbed topically by intact skin at rates of 3.1, 4.9 and 6.8 ng/cm2 per hour, for the 0.03%, 0.1% and 0.3% ointment concentrations, respectively.[1,2] Interestingly, tacrolimus was absorbed regardless of occlusion at significantly higher rates in damaged skin, with percutaneous penetration of 40 ng/cm2 per hour. Thus, while on topical therapy, the patient’s skin will absorb progressively lower quantities of the agent as the lesions heal. This self-regulatory property of tacrolimus is a major advantage, as it should result in fewer adverse effects over the course of treatment.[4] In one randomized, double-blind study, a 3-week course of twice daily, topically applied tacrolimus ointment 0.03%, 0.1% and 0.3% resulted in blood concentrations below 0.25 ng/mL in most patients.[5] This low systemic absorption rate is typical of the majority of clinical cases. The mean time taken to attain the highest blood concentration of tacrolimus is between 5 and 6 h after application in adults and 2.5 h in children.[6] In another study, the bioavailability of topical tacrolimus was found to be lower than 0.5%. 6 Furthermore, tacrolimus does not seem to accumulate, either in the skin or blood, following repeated applications.[7] When taken orally, the absorption of tacrolimus is erratic and poor. The bioavailability of the drug ranges from 5% to 67%. 8 Intravenous administration of tacrolimus has resulted in the highest relative tissue concentrations in the spleen, lung and kidneys, followed by heart, skin and muscle, then fat and bone marrow and finally by liver, bone and blood.[9] During topical administration, there is no evidence of cutaneous metabolism. Systemically, tacrolimus metabolism is mediated by the cytochrome P450 3A4 isoenzyme. It is metabolized in the liver, by CYPIA and CYPIIIA.[8] In vitro studies have identified eight different metabolites. When SMS 201-995 is administered via the intraperitoneal route, the effects of tacrolimus are enhanced and thus may enable lower doses of the latter to be used.[10] When administered systemically, tacrolimus is eliminated in bile. It is cleared at 2.25 L/h, with a half-life of 40 h. 1 It has been found that paediatric transplant patients under 6 years old have higher weight-normalized clearance of tacrolimus, as compared with older children and adults. |
