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United States Pharmacopeia (USP) Reference Standard

Tacrolimus, FK-506 monohydrate
Empirical Formula (Hill Notation):
C44H69NO12 · H2O
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:


pharmaceutical primary standard




pharmaceutical (small molecule)



SMILES string




InChI key


Gene Information

human ... FKBP1A(2280)

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Biochem/physiol Actions

FK-506 is a potent immunosuppressant, neuroprotective and neuroregenerative, and in vitro T cell proliferation blocker. FK-506 disrupts calcineurin-mediated signal transduction in T lymphocytes and interacts with its FK-506-binding protein-12 (FKBP12).

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

USP issued SDS can be found here.
Sales restrictions may apply.


Skull and crossbones

Signal Word


Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 3 Oral

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More documents

Quotes and Ordering

Frank Stifft et al.
Transplantation, 97(7), 775-780 (2014-04-02)
Tacrolimus has originally been registered as a twice-daily formulation (Prograf, Tac BID), although a once-daily formulation (Advagraf, Tac QD) is also available. A reduced intrapatient variability of Tac Cmin, a surrogate marker for 24-hour drug exposure (AUC0-24), has been suggested.
Rania Rabie et al.
Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society, 19(1), 36-48 (2012-07-24)
Cyclosporine A (CSA), but not tacrolimus (TAC), inhibits hepatitis C virus (HCV) replication in vitro. Clinical reports on the efficacy of interferon-α (IFNα)-based antiviral therapy (AVT) for recurrent HCV after liver transplantation (LT) with CSA and TAC are conflicting. Our
Miwa Uesugi et al.
Pharmacogenetics and genomics, 24(7), 356-366 (2014-06-10)
We investigated whether the cytochrome P450 3A5*3 (CYP3A5*3) genotype affects tacrolimus pharmacokinetics and the risk of acute cellular rejection in living-donor liver transplant patients in Japan. Between July 2004 and June 2011, we enrolled 410 living-donor liver transplant patients receiving
Frank Stifft et al.
British journal of clinical pharmacology, 78(5), 996-1004 (2014-05-09)
The immunosuppressant tacrolimus is usually administered orally. When this is not feasible, other routes of administration may be useful. Previous research suggested that tacrolimus may be applied sublingually or rectally. Pharmacokinetic data are sparse. The aim of this study was
Violette M G J Gijsen et al.
Pediatric transplantation, 17(3), 205-215 (2013-03-02)
Renal dysfunction after non-renal transplantation in adult tacrolimus-treated transplant patients is well documented. Little is known about its prevalence in children. Age-related changes in both disposition and effect of tacrolimus as well as renal function may preclude extrapolation of adult

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