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(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity

(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity structure

CAS No.: 131944-48-4

Chemical Name:: (E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity

Synonyms: Tacrolimus Impurity 2;Tacrolimus Rearrangement Lactone;Tacrolimus Impurity 21;Tacrolimus Impurity 29;Tacrolimus Impurity 36;TACROLIMUS REGIOISOMER / IMPURITY D;Tacrolimus Impurity 13 （Positional Isomer ）;(E/Z)-FK-506 26,28-Allylic Ester Rearrangemen;(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*]]-

CBNumber:: CB32544268

Molecular Formula:: C44H69NO12

Molecular Weight:: 804.02

MDL Number:: MFCD28988714

MOL File:: 131944-48-4.mol

Last updated:2025-03-03 14:09:59

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(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity Properties

Melting point	115-120°C
Boiling point	879.7±75.0 °C(Predicted)
Density	1.19±0.1 g/cm3(Predicted)
storage temp.	-20°C Freezer
solubility	Chloroform (Slightly), Methanol (Slightly)
form	Solid
pka	9.98±0.70(Predicted)
color	White to Pale Yellow
InChIKey	CISNOWSTVWQKDD-WZVFZSQUNA-N
FDA UNII	Y8RY7CLE8L

(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity price More Price(7)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	F370020	(E/Z)-FK-50626,28-AllylicEsterRearrangementImpurity	131944-48-4	10mg	$90	2021-12-16	Buy
TRC	F370020	(E/Z)-FK-50626,28-AllylicEsterRearrangementImpurity	131944-48-4	25mg	$180	2021-12-16	Buy
Biosynth Carbosynth	IF23294	(E/Z)-FK-506 26,28-allylic ester rearrangement impurity	131944-48-4	1mg	$180	2021-12-16	Buy
Biosynth Carbosynth	IF23294	(E/Z)-FK-506 26,28-allylic ester rearrangement impurity	131944-48-4	2mg	$280	2021-12-16	Buy
Biosynth Carbosynth	IF23294	(E/Z)-FK-506 26,28-allylic ester rearrangement impurity	131944-48-4	5mg	$550	2021-12-16	Buy

Product number	Packaging	Price	Buy
F370020	10mg	$90	Buy
F370020	25mg	$180	Buy
IF23294	1mg	$180	Buy
IF23294	2mg	$280	Buy
IF23294	5mg	$550	Buy

(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity Chemical Properties,Uses,Production

Chemical Properties

White to Pale Yellow Solid

Uses

FK-506 (F370000) impurity. A new macrolite of thermal rearrangement of the immunosuppressant FK-506.

(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity Preparation Products And Raw materials

Raw materials

Preparation Products

(E/Z)-FK-506 26,28-Allylic Ester RearrangeMent IMpurity Suppliers

Global( 57)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
QUALITY CONTROL SOLUTIONS LTD.	0755-66853366; 13670046396	ORDERS@QCSRM.COM	China	24342	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28172	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12373	58
China National Standard Pharmaceutical Corporation Limited	+8615391658522	overseasales@yongstandards.com	China	11922	58
Guangzhou CATO Research Chemicals Inc.	+86-020-81960175-617 +8615602392859	Intermediate@cato-chem.com	China	6335	58
Moxin Chemicals	+8617320513646	mike@molcoo.com	China	9658	58
Scinova Biotech(Guangzhou) Co., Ltd.	13268215580	scinova_sales@163.com	China	7025	58
Hubei Xinyang Medical Technology Co., Ltd	15347293736 15347293736	2853117764@qq.com	China	8938	58
Nanning Saifir Biotechnology Co., Ltd.	18877121284	1309367106@qq.com	China	261	58
ChemStrong Scientific Co.,Ltd	0755-0755-66853366 13670046396	sales@chem-strong.com	China	18101	56

Supplier	Advantage
QUALITY CONTROL SOLUTIONS LTD.	58
Hubei Jusheng Technology Co.,Ltd.	58
sgtlifesciences pvt ltd	58
China National Standard Pharmaceutical Corporation Limited	58
Guangzhou CATO Research Chemicals Inc.	58
Moxin Chemicals	58
Scinova Biotech(Guangzhou) Co., Ltd.	58
Hubei Xinyang Medical Technology Co., Ltd	58
Nanning Saifir Biotechnology Co., Ltd.	58
ChemStrong Scientific Co.,Ltd	56

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[3R-[3R*(1R*,3R*,4R*),4E,6S*,7S*,10R*,11E,14S*,16S*,17R*,18S*,20R*,21R*,28aS*]]- Tacrolimus Impurity 13 （Positional Isomer ） 17,21-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclopentacosine-1,9,22,23(6H,25H)-tetrone, 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)-, [3R-[3R*(1R*,3R*,4R*),4E,6S*,7S*,10R*,11E,14S*,1... [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)-7,21-epo Tacrolimus Impurity 21 Tacrolimus Impurity 2 Tacrolimus Rearrangement Lactone 17,21-Epoxy-3H-pyrido[2,1-c][1,4]oxaazacyclopentacosine-1,9,22,23(6H,25H)-tetrone, 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)-, [3R-[3R*(1R*,3R*,4R*),4E,6S*,7S*,10R*,11E,14S*,16S*,17R*,18S*,20R*,21R*,28aS*]]- (E/Z)-FK-506 26,28-Allylic Ester Rearrangement Impurity (E/Z)-FK-506 26,28-Allylic Ester Rearrangemen Tacrolimus Impurity 29 TACROLIMUS REGIOISOMER / IMPURITY D Tacrolimus Impurity 36 131944-48-4 Chiral Reagents, Impurities, Pharmaceuticals, Intermediates & Fine Chemicals Chiral Reagents Impurities Intermediates & Fine Chemicals Pharmaceuticals