| Bioactivity | L 683519, one of the impurities of tacrolimus, is an immunosuppressant. L 683519 can inhibit the activity of FK-506 binding protein[1]. |
| CAS | 132172-14-6 |
| Formula | C43H67NO12 |
| Molar Mass | 789.99 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Chen TS, et al. Microbial transformation of immunosuppressive compounds. II. Specific desmethylation of 13-methoxy group of FK 506 and FR 900520 by an unidentified Actinomycete ATCC 53828 [corrected]. J Antibiot (Tokyo). 1992 Apr;45(4):577-80. |