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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.

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Impurities, Metoprolol

Metoprolol EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 62572-94-5

Mol F.

: C„H‚ƒNOƒ

Mol W.

: 253.34

Cat No.

: SA41408

Impurities, Metoprolol

Metoprolol EP Impurity J

Please enquire for price & pack size

Out of Stock

CAS No.

: 163685-37-8

Mol F.

: CˆHƒNO…

Mol W.

: 341.44

Cat No.

: SA41409

Impurities, Metoprolol

Metoprolol EP Impurity M

Please enquire for price & pack size

Out of Stock

CAS No.

: 343785-33-1

Mol F.

: C9H22N2O

Mol W.

: 174.28

Cat No.

: SA41410

Impurities, Metoprolol

Metoprolol EP Impurity N

Please enquire for price & pack size

Out of Stock

CAS No.

: 6452-57-9

Mol F.

: C†H…NO‚

Mol W.

: 133.19

Cat No.

: SA41411

Impurities, Metoprolol

Metoprolol EP Impurity O

Please enquire for price & pack size

Out of Stock

CAS No.

: 154784-36-8

Mol F.

: C27H41NO6

Mol W.

: 475.62

Cat No.

: SA41412

Impurities, Metoprolol

Metoprolol Epoxy Ester Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 76805-25-9

Mol F.

: C13H16O4

Mol W.

: 236.26

Cat No.

: SA41418

Impurities, Metoprolol

Metoprolol Epoxy Hydroxyethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 104857-48-9

Mol F.

: C11H14O3

Mol W.

: 194.23

Cat No.

: SA41420

Impurities, Metoprolol

Metoprolol Epoxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 122-60-1

Mol F.

: C9H10O2

Mol W.

: 150.17

Cat No.

: SA41416

Impurities, Metoprolol

Metoprolol Epoxy Methoxyethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 56718-70-8

Mol F.

: C12H16O3

Mol W.

: 208.25

Cat No.

: SA41421

Impurities, Metoprolol

Metoprolol Hydroxy Ester Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 17138-28-2

Mol F.

: C10H12O3

Mol W.

: 180.2

Cat No.

: SA41417

Impurities, Metoprolol

Metoprolol R-Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 81024-43-3

Mol F.

: C15H25NO3

Mol W.

: 267.36

Cat No.

: SA41414

Impurities, Metoprolol

Metoprolol S-Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 81024-42-2

Mol F.

: C15H25NO3

Mol W.

: 267.36

Cat No.

: SA41415

Impurities, Metoprolol

Metoprolol USP RC B

Please enquire for price & pack size

Out of Stock

CAS No.

: 56718-76-4

Mol F.

: C12H17ClO3

Mol W.

: 244.71

Cat No.

: SA41423

Impurities, Midazolam

Midazolam EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 59469-74-8

Mol F.

: C18H13ClFN3

Mol W.

: 325.77

Cat No.

: SA44307

Impurities, Midazolam

Midazolam Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 59468-83-6

Mol F.

: C18H11ClFN3O

Mol W.

: 341.8

Cat No.

: SA44304

Impurities, Milnacipran

Milnacipran EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 153275-06-0

Mol F.

: C11H11NO

Mol W.

: 173.21

Cat No.

: SA24300

Impurities, Milnacipran

Milnacipran EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 140-29-4

Mol F.

: C₈H₇N

Mol W.

: 117.15

Cat No.

: SA24304

Impurities, Milnacipran

Milnacipran EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 63106-93-4

Mol F.

: C₁₁H₁₀O₂

Mol W.

: 174.2

Cat No.

: SA24305

Impurities, Milnacipran

Milnacipran EP Impurity M

Please enquire for price & pack size

Out of Stock

CAS No.

: 871100-19-5

Mol F.

: C11H13NO2

Mol W.

: 191.23

Cat No.

: SA24312

Impurities, Minocycline

Minocycline Hydrochloride

Please enquire for price & pack size

Out of Stock

CAS No.

: 13614-98-7

Mol F.

: C23H27N3O7·HCl

Mol W.

: 493.94

Cat No.

: SA49000

Impurities, Modafinil

Modafinil

Please enquire for price & pack size

Out of Stock

CAS No.

: 68693-11-8

Mol F.

: C15H15NO2S

Mol W.

: 273.35000000000002

Cat No.

: SA42600

Impurities, Modafinil

Modafinil Acid Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 101094-05-7

Mol F.

: C15H14O4S

Mol W.

: 290.33

Cat No.

: SA42607

Impurities, Modafinil

Modafinil EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 63547-24-0

Mol F.

: C15H14O3S

Mol W.

: 274.3

Cat No.

: SA42601

Impurities, Modafinil

Modafinil EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 63547-24-0

Mol F.

: C15H15NO3S

Mol W.

: 289.39999999999998

Cat No.

: SA42602

Impurities, Modafinil

Modafinil EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 63547-25-1

Mol F.

: C16H16O3S

Mol W.

: 288.36

Cat No.

: SA42603

Impurities, Modafinil

Modafinil Methyl Ester Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 713134-72-6

Mol F.

: C16H16O3S

Mol W.

: 288.36

Cat No.

: SA42608

Impurities, Modafinil

Modafinil Related Compound C

Please enquire for price & pack size

Out of Stock

CAS No.

: 68524-30-1

Mol F.

: C15H15NOS

Mol W.

: 257.39999999999998

Cat No.

: SA42604

Impurities, Modafinil

Modafinil Related Compound D

Please enquire for price & pack size

Out of Stock

CAS No.

: 574-42-5

Mol F.

: C26H22O

Mol W.

: 350

Cat No.

: SA42605

Impurities, Modafinil

Modafinil Related Compound E

Please enquire for price & pack size

Out of Stock

CAS No.

: 1726-02-9

Mol F.

: C26H22S2

Mol W.

: 398.6

Cat No.

: SA42606

Impurities, Molnupiravir

Molnupiravir IP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C16H26N4O8

Mol W.

: 402.4

Cat No.

: SA46215

Impurities, Molnupiravir

Molnupiravir IP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 2346619-88-1

Mol F.

: C21H31N3O9

Mol W.

: 469.49

Cat No.

: SA46216

Impurities, Molnupiravir

Molnupiravir α-anomer

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C13H19N3O7

Mol W.

: 329.31

Cat No.

: SA46207

Impurities, Mometasone

Mometasone Furoate

Please enquire for price & pack size

Out of Stock

CAS No.

: 83919-23-7

Mol F.

: C27H30Cl2O6

Mol W.

: 521.43

Cat No.

: SA28700

Impurities, Mometasone

Mometasone Furoate EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 223776-49-6

Mol F.

: C28H31ClO8S

Mol W.

: 563.06

Cat No.

: SA28702

Impurities, Mometasone

Mometasone Furoate EP Impurity I

$595.00 25 mg

Limited Stock

CAS No.

Mol F.

: C29H34Cl2O8

Mol W.

: 581.48

Cat No.

: SA28709

Impurities, Varenicline

Mono amino deprotected varenicline Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 357424-22-7

Mol F.

: C11H14N2

Mol W.

: 174.24

Cat No.

: SA39512

Fingolimod, Impurities

mono O-Acetyl Fingolimod Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1807973-92-7

Mol F.

: C21H36ClNO3

Mol W.

: 385.97

Cat No.

: SA34518

Etravirine, Impurities

Monohydroxy Etravirine

Please enquire for price & pack size

Out of Stock

CAS No.

: 1246815-68-8

Mol F.

: C20H15BrN6O2

Mol W.

: 451.28

Cat No.

: SA26104

Impurities, Tolterodine

Monoisopropyl tolterodine impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 194482-41-2

Mol F.

: C19H25NO

Mol W.

: 283.41000000000003

Cat No.

: SA28208

Impurities, Montelukast Sodium

Montelukast Mercapto Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 162515-68-6

Mol F.

: C6H10O2S

Mol W.

: 146.21

Cat No.

: SA44902

Fosaprepitant, Impurities

MORPHOLINE IMPURITY FOR APREPITANT (Oxalatae salt)

Please enquire for price & pack size

Out of Stock

CAS No.

: 1242175-41-2

Mol F.

: C22H20F7NO6

Mol W.

: 527.4

Cat No.

: SA45426

Impurities, Moxifloxacin

Moxifloxacin

Please enquire for price & pack size

Out of Stock

CAS No.

: 186826-86-8

Mol F.

: C21H24FN3O4

Mol W.

: 401.43

Cat No.

: SA30700

Impurities, Moxifloxacin

Moxifloxacin 7-Amino Impurity

$95.00 25 mg

Out of Stock

CAS No.

: 172426-88-9

Mol F.

: C₁₄H₁₃FN₂O₄

Mol W.

: 292.26

Cat No.

: SA30709

Impurities, Moxifloxacin

Moxifloxacin Difluoro Acid Impurity

$95.00 25 mg

Out of Stock

CAS No.

: 93107-30-3

Mol F.

: C13H9F2NO3

Mol W.

: 265.21

Cat No.

: SA30710

Impurities, Moxifloxacin

Moxifloxacin Difluoro Ethoxy Acid Impurity

$95.00 25 mg

Out of Stock

CAS No.

: 143158-55-8

Mol F.

: C15H13F2NO4

Mol W.

: 309.26

Cat No.

: SA30711

Impurities, Moxifloxacin

Moxifloxacin Difluoro Ethoxy Ethyl Ester

$125.00 25 mg

Out of Stock

CAS No.

: 172602-83-4

Mol F.

: C17H17F2NO4

Mol W.

: 337.32

Cat No.

: SA30712

Impurities, Moxifloxacin

Moxifloxacin Difluoro Hydroxy Ethyl Ester

$155.00 25 mg

Out of Stock

CAS No.

: 452092-31-8

Mol F.

: C15H13F2NO4

Mol W.

: 309.26

Cat No.

: SA30716

Impurities, Moxifloxacin

Moxifloxacin EP Impurity A

$155.00 25 mg

Out of Stock

CAS No.

: 151213-15-9

Mol F.

: C20H21F2N3O3

Mol W.

: 389.4

Cat No.

: SA30701

Impurities, Moxifloxacin

Moxifloxacin EP Impurity B

$255.00 25 mg

Out of Stock

CAS No.

: 1029364-73-5

Mol F.

: C22H27N3O5

Mol W.

: 413.47

Cat No.

: SA30702

Impurities, Moxifloxacin

Moxifloxacin EP Impurity C

$155.00 25 mg

Out of Stock

CAS No.

: 1029364-75-7

Mol F.

: C22H26FN3O4

Mol W.

: 415.46

Cat No.

: SA30703

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.

Impurities, Metoprolol

Metoprolol EP Impurity H

CAS No.

: 62572-94-5

Mol F.

: C„H‚ƒNOƒ

Mol W.

: 253.34

Cat No.

: SA41408

Impurities, Metoprolol

Metoprolol EP Impurity J

CAS No.

: 163685-37-8

Mol F.

: CˆHƒNO…

Mol W.

: 341.44

Cat No.

: SA41409

Impurities, Metoprolol

Metoprolol EP Impurity M

CAS No.

: 343785-33-1

Mol F.

: C9H22N2O

Mol W.

: 174.28

Cat No.

: SA41410

Impurities, Metoprolol

Metoprolol EP Impurity N

CAS No.

: 6452-57-9

Mol F.

: C†H…NO‚

Mol W.

: 133.19

Cat No.

: SA41411

Impurities, Metoprolol

Metoprolol EP Impurity O

CAS No.

: 154784-36-8

Mol F.

: C27H41NO6

Mol W.

: 475.62

Cat No.

: SA41412

Impurities, Metoprolol

Metoprolol Epoxy Ester Impurity

CAS No.

: 76805-25-9

Mol F.

: C13H16O4

Mol W.

: 236.26

Cat No.

: SA41418

Impurities, Metoprolol

Metoprolol Epoxy Hydroxyethyl Impurity

CAS No.

: 104857-48-9

Mol F.

: C11H14O3

Mol W.

: 194.23

Cat No.

: SA41420

Impurities, Metoprolol

Metoprolol Epoxy Impurity

CAS No.

: 122-60-1

Mol F.

: C9H10O2

Mol W.

: 150.17

: C„H‚ƒNOƒ

: CˆHƒNO…

: C†H…NO‚