CERTIFICATE OF ANALYSIS

PRODUCT NAME: Tacrolimus Regioisomer
Date of Mfg: Sample COA RETEST DATE: Sample COA
Catalogue Number TRL-003
Item/Batch Number Sample COA
Quantity Sample COA
CAS Number 131944-48-4
Mol. Formula C44H69NO12
Molecular Wt 804.02
IUPAC (1R,9S,12R,13E,15S,16S,19R,20E,23S,25S,26R,27R,29R)-1,16-dihydroxy-12-[(1R,3S,4R)-4-hydroxy-3-methoxycyclohexyl]-25,27-dimethoxy-13,15,21,23,29-pentam
Synonyms (E/Z)-FK-506 26,28-Allylic Ester Rearrangement Impurity;[3R-[3R*(1R*,3R*,4R*),4E,6S*,7S*,10R*,11E,14S*,16S*,17R*,18S*,20R*,21R*,28aS*]]-7,8,10,13,14,15,16,17,18,19,20,21,26,27,28,28a-Hexadecahydro-7,21-dihydroxy-3-(4-hydroxy-3-methoxycyclohexyl)-16,18-dimethoxy-4,6,12,14,20-pentamethyl-10-(2-propenyl)-17,21-epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclopentacosine-1,9,22,23(6H,25H)-tetrone; Tacrolimus Impurity D
Long Term Storage Condition 2-8°C Refrigerator
Handling instruction Sample COA
Test Results
Appearance Off White solid
Water content by KF/TGA Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100 Sample COA
Identification by HNMR Sample COA
Identification By IR Sample COA
Mass (ESI) Sample COA
Solubility Chloroform (Slightly), Methanol (Slightly)
Purity 95.17 % by HPLC
Analysis Date (Release Date) Sample COA
Attachments Sample COA
Other Information Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption
This is Sample COA