Home / Products / Impurities

Impurities

SynThink is a producer and supplier of a number of pharmaceutical Reference Standards (Impurity Standards) which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products. Many API Impurities are available in our stock.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Empagliflozin, Impurities

Empagliflozin Phenolic Acid

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C21H23ClO7

Mol W.

: 422.86

Cat No.

: SA15158

Empagliflozin, Impurities

Empagliflozin R-Isomer of alpha-Anomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 2452301-42-5

Mol F.

: C23H27ClO7

Mol W.

: 450.91

Cat No.

: SA15130

Empagliflozin, Impurities

Empagliflozine Sulfonate Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2514922-33-7

Mol F.

: C10H12O4S

Mol W.

: 228.26

Cat No.

: SA15143

Empagliflozin, Impurities

Emplagliflozin Benzylic Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2137418-13-2

Mol F.

: C23H27ClO8

Mol W.

: 466.91

Cat No.

: SA15129

Empagliflozin, Impurities

Emplagliflozin Keto Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2125472-55-9

Mol F.

: C23H25ClO8

Mol W.

: 464.89

Cat No.

: SA15128

Emtricitabine, Impurities

Emtricitabine

Please enquire for price & pack size

Out of Stock

CAS No.

: 143491-57-0

Mol F.

: C₈H₁₀FN₃O₃S

Mol W.

: 247.25

Cat No.

: SA22905

Emtricitabine, Impurities

Emtricitabine Diastereomer (RS ISOMER )

Please enquire for price & pack size

Out of Stock

CAS No.

: 143491-54-7

Mol F.

: C8H10N3O3FS

Mol W.

: 247.25

Cat No.

: SA22928

Emtricitabine, Impurities

Emtricitabine N,N’-Methylene Dimer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1962114-97-1

Mol F.

: C17H20F2N6O6S2

Mol W.

: 506.51

Cat No.

: SA22921

Emtricitabine, Impurities

Emtricitabine Uracil Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1422361-25-8

Mol F.

: C18H25FN2O5S

Mol W.

: 400.46

Cat No.

: SA22932

ENALAPRIL, Impurities

Enalapril 2-Chlorophenyl Impurity | CAS : 85918-76-9

Please enquire for price & pack size

Out of Stock

CAS No.

: 85918-76-9

Mol F.

: C20H27ClN2O5

Mol W.

: 410.9

Cat No.

: SA44001

ENALAPRIL, Impurities

Enalapril 4-Chlorophenyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C20H27ClN2O5

Mol W.

: 410.89

Cat No.

: SA44002

Impurities, Sitagliptin

Enamine Diamide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C18H15F6N5O2

Mol W.

: 447.33

Cat No.

: SA10425

Impurities, Sofosbuvir

ent-Sofosbuvir desphosphate

Please enquire for price & pack size

Out of Stock

CAS No.

: 1946820-96-7

Mol F.

: C10H13FN2O5

Mol W.

: 260.22

Cat No.

: SA15428

Entacapone, Impurities

Entacapone

Please enquire for price & pack size

Out of Stock

CAS No.

: 130929-57-6

Mol F.

: C14H15N3O5

Mol W.

: 305.29000000000002

Cat No.

: SA26900

Entacapone, Impurities

Entacapone 3-Methyl Ether

Please enquire for price & pack size

Out of Stock

CAS No.

: 857629-78-8

Mol F.

: C15H17N3O5

Mol W.

: 319.31

Cat No.

: SA26911

Entacapone, Impurities

Entacapone 5-Nitrovanillin Dimer Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2514697-83-5

Mol F.

: C22H29N5O6

Mol W.

: 459.5

Cat No.

: SA26912

Entacapone, Impurities

Entacapone Benzoic Acid Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 84211-30-3

Mol F.

: C7H5NO6

Mol W.

: 199.21

Cat No.

: SA26910

Entacapone, Impurities

Entacapone EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 145195-63-7

Mol F.

: C14H15N3O5

Mol W.

: 305.29000000000002

Cat No.

: SA26901

Entacapone, Impurities

Entacapone EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 857629-79-9

Mol F.

: C16H19N3O5

Mol W.

: 333.34

Cat No.

: SA26904

Entacapone, Impurities

Entacapone EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 7659-29-2

Mol F.

: C6H4N2O6

Mol W.

: 200.11

Cat No.

: SA26905

Entacapone, Impurities

Entacapone EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 160391-70-8

Mol F.

: C10H6N2O6

Mol W.

: 250.16

Cat No.

: SA26906

Entacapone, Impurities

Entacapone EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 1364322-41-7

Mol F.

: C11H9N3O5

Mol W.

: 263.20999999999998

Cat No.

: SA26907

Entacapone, Impurities

Entacapone EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 1150310-15-8

Mol F.

: C15H15N3O5

Mol W.

: 317.3

Cat No.

: SA26908

Entacapone, Impurities

Entacapone EP Impurity I

Please enquire for price & pack size

Out of Stock

CAS No.

: 1364322-42-8

Mol F.

: C13H12N2O6

Mol W.

: 292.24

Cat No.

: SA26909

Impurities, Nitrosamine

Epinephrine Nitroso Impuirty

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C9H12N2O4

Mol W.

: 212.2

Cat No.

: SA44665

Eplerenone, Impurities

Eplerenone

Please enquire for price & pack size

Out of Stock

CAS No.

: 107724-20-9

Mol F.

: C24H30O6

Mol W.

: 414.49

Cat No.

: SA41800

Eplerenone, Impurities

Eplerenone 11-alpha-Hydroxy Canrenone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 192569-17-8

Mol F.

: C22H28O4

Mol W.

: 356.46

Cat No.

: SA41802

Eplerenone, Impurities

Eplerenone 11-alpha-Hydroxy Nitroethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H31NO6

Mol W.

: 417.5

Cat No.

: SA41813

Eplerenone, Impurities

Eplerenone 6-beta-Hydroxy Analog

Please enquire for price & pack size

Out of Stock

CAS No.

: 209253-80-5

Mol F.

: C24H30O6

Mol W.

: 430.49

Cat No.

: SA41810

Eplerenone, Impurities

Eplerenone Canrenone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 976-71-6

Mol F.

: C22H28O3

Mol W.

: 340.46

Cat No.

: SA41801

Eplerenone, Impurities

Eplerenone EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 209253-67-8

Mol F.

: C23H28O5

Mol W.

: 384.47

Cat No.

: SA41804

Eplerenone, Impurities

Eplerenone EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 192704-82-8

Mol F.

: C24H30O6

Mol W.

: 414.49

Cat No.

: SA41805

Eplerenone, Impurities

Eplerenone EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 95716-70-4

Mol F.

: C24H30O5

Mol W.

: 398.49

Cat No.

: SA41812

Eplerenone, Impurities

Eplerenone EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 209253-82-7

Mol F.

: C23H28O6

Mol W.

: 400.46

Cat No.

: SA41806

Eplerenone, Impurities

Eplerenone EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 209253-81-6

Mol F.

: C24H30O6

Mol W.

: 414.49

Cat No.

: SA41811

Eplerenone, Impurities

Eplerenone EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 579484-30-3

Mol F.

: C24H32O7

Mol W.

: 432.51

Cat No.

: SA41807

Eplerenone, Impurities

Eplerenone EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 41020-65-9

Mol F.

: C24H32O5

Mol W.

: 400.51

Cat No.

: SA41808

Fluorometholone, Impurities

Epoxyfluorometholone acetate

Please enquire for price & pack size

Out of Stock

CAS No.

: 83873-17-0

Mol F.

: C24H30O5

Mol W.

: 398.49

Cat No.

: SA38417

Equilin, Impurities

Equilin

Please enquire for price & pack size

Out of Stock

CAS No.

: 474-86-2

Mol F.

: C18H20O2

Mol W.

: 268.35

Cat No.

: SA16400

Equilin, Impurities

Equilin 3-Benzoate

Please enquire for price & pack size

Out of Stock

CAS No.

: 6030-80-4

Mol F.

: C25H24O3

Mol W.

: 372.45

Cat No.

: SA16401

Equilin, Impurities

Equilin 3-O-Methyl Ether

Please enquire for price & pack size

Out of Stock

CAS No.

: 6030-83-7

Mol F.

: C19H22O2

Mol W.

: 282.38

Cat No.

: SA16407

Erlotinib, Impurities

Erlotinib 7-O-Chloroethyl Analog

Please enquire for price & pack size

Out of Stock

CAS No.

: 183320-19-6

Mol F.

: C21H21Cl2N3O3

Mol W.

: 434.32

Cat No.

: SA25204

Erlotinib, Impurities

Erlotinib Carboxylic Acid

Please enquire for price & pack size

Out of Stock

CAS No.

: 882420-21-5

Mol F.

: C22H25N3O6

Mol W.

: 427.45

Cat No.

: SA25206

Erlotinib, Impurities

Erlotinib Didesmethyl

Please enquire for price & pack size

Out of Stock

CAS No.

: 183321-84-8(base)183320-12-9(HClsalt)

Mol F.

: C20H19N3O4

Mol W.

: 365.38

Cat No.

: SA25208

Erlotinib, Impurities

Erlotinib Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 1058132-82-3

Mol F.

: C22H25N3O4

Mol W.

: 395.45

Cat No.

: SA25215

Erlotinib, Impurities

Erlotinib Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 1809951-10-7

Mol F.

: C28H34N4O9

Mol W.

: 570.59

Cat No.

: SA25223

Erlotinib, Impurities

Erlotinib Impurity K

Please enquire for price & pack size

Out of Stock

CAS No.

: 2204518-92-1

Mol F.

: C22H24ClN3O4

Mol W.

: 429.9

Cat No.

: SA25219

Erlotinib, Impurities

Erlotinib Related compound A

Please enquire for price & pack size

Out of Stock

CAS No.

: 299912-59-7

Mol F.

: C25H30ClN3O5

Mol W.

: 487.98

Cat No.

: SA25214

Ertugliflozin, Impurities

Ertugliflozin

Please enquire for price & pack size

Out of Stock

CAS No.

: 1210344-57-2

Mol F.

: C22H25ClO7

Mol W.

: 436.88

Cat No.

: SA36800

Ertugliflozin, Impurities

Ertugliflozin C-2 Epimer Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C22H25ClO7

Mol W.

: 436.88

Cat No.

: SA36805