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Impurities

SynThink is a trusted producer and supplier of Pharmaceutical Reference Standards, including Impurity Standards. These materials are essential for pharmaceutical companies conducting research into the quality, stability, and biological safety of drug products. We maintain a robust inventory of API impurities, ready to support your development and regulatory needs.

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Dapagliflozin 6-Methoxy Triacetate Impurity | Dapagliflozin

,

Dapagliflozin 6-Methoxy Triacetate Impurity
$195.00 25 mg
In Stock

CAS No.

Mol F.

: C28H33ClO9

Mol W.

: 549.01

Cat No.

: SA15035

Dapagliflozin Alpha Furanose Isomer | 1469910-83-5 | Dapagliflozin

,

Dapagliflozin Alpha Furanose Isomer
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In Stock

CAS No.

: 1469910-83-5

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15031

Dapagliflozin Bromo Keto impurity (2-ethoxy) | 1404477-10-6 | Dapagliflozin

,

Dapagliflozin Bromo Keto impurity (2-ethoxy)
$258.00 25 mg
In Stock

CAS No.

: 1404477-10-6

Mol F.

: C15H12BrClO2

Mol W.

: 339.62

Cat No.

: SA15006

Dapagliflozin C-2 Epimer | 2133407-75-5 | Dapagliflozin

,

Dapagliflozin C-2 Epimer
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In Stock

CAS No.

: 2133407-75-5

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15024

Dapagliflozin Des-Ethoxy Impurity | 1185339-44-9 | Dapagliflozin

,

Dapagliflozin Des-Ethoxy Impurity
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In Stock

CAS No.

: 1185339-44-9

Mol F.

: C19H21ClO5

Mol W.

: 364.82

Cat No.

: SA15071

Dapagliflozin Deschloro Impurity | 2444702-80-9 | Dapagliflozin

,

Dapagliflozin Deschloro Impurity
$256.00 50 mg
In Stock

CAS No.

: 2444702-80-9

Mol F.

: C21H26O6

Mol W.

: 374.43

Cat No.

: SA15014

Dapagliflozin Enantiomer | 2459303-35-4 | Dapagliflozin

Dapagliflozin Enantiomer
$325.00 5 mg
In Stock

CAS No.

: 2459303-35-4

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15027

Dapagliflozin Hydroxy (Benzylic) Impurity | 1204222-85-4 | Dapagliflozin

,

Dapagliflozin Hydroxy (Benzylic) Impurity
$215.00 5 mg
In Stock

CAS No.

: 1204222-85-4

Mol F.

: C21H25ClO7

Mol W.

: 424.87

Cat No.

: SA15012

Dapagliflozin impurity C; 1α-Methoxy Dapagliflozin, 1α-O-Methyl Dapagliflozin | 714269-57-5; 461432-24-6 | Dapagliflozin

,

Dapagliflozin impurity C; 1α-Methoxy Dapagliflozin, 1α-O-Methyl Dapagliflozin
$169.00 25 mg
In Stock

CAS No.

: 714269-57-5; 461432-24-6

Mol F.

: C22H27ClO7

Mol W.

: 438.9

Cat No.

: SA15010

Dapagliflozin Impurity D; Dapagliflozin alfa-Isomer; 1R-Dapagliflozin | 1373321-04-0 | Dapagliflozin

,

Dapagliflozin Impurity D; Dapagliflozin alfa-Isomer; 1R-Dapagliflozin
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In Stock

CAS No.

: 1373321-04-0

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15008

Dapagliflozin Keto Impurity | 2169998-23-4 | Dapagliflozin

,

Dapagliflozin Keto Impurity
$239.00 10 mg
In Stock

CAS No.

: 2169998-23-4

Mol F.

: C21H23ClO7

Mol W.

: 422.86

Cat No.

: SA15011

Dapagliflozin Methoxy Impurity | 333359-90-3 | Dapagliflozin

,

Dapagliflozin Methoxy Impurity
$195.00 25 mg
In Stock

CAS No.

: 333359-90-3

Mol F.

: C20H23ClO6

Mol W.

: 394.85

Cat No.

: SA15054

Dapagliflozin Methoxy Tetraacetate Impurity | 872980-38-6 | Dapagliflozin

,

Dapagliflozin Methoxy Tetraacetate Impurity
$298.00 25 mg
In Stock

CAS No.

: 872980-38-6

Mol F.

: C28H31ClO10

Mol W.

: 562.99

Cat No.

: SA15053

Dapagliflozin MonoAcetyl Impurity, Dapagliflozin Acetyl Impurity | 1632287-34-3 | Dapagliflozin

,

Dapagliflozin MonoAcetyl Impurity, Dapagliflozin Acetyl Impurity
$175.00 25 mg
In Stock

CAS No.

: 1632287-34-3

Mol F.

: C23H27ClO7

Mol W.

: 450.91

Cat No.

: SA15028

Dapagliflozin Nosyl Impurity | Dapagliflozin

,

Dapagliflozin Nosyl Impurity
$185.00 10 mg
In Stock

CAS No.

Mol F.

: C33H32ClNO14S

Mol W.

: 734.12

Cat No.

: SA15052

Dapagliflozin open sugar impurity | 2100872-88-4 | Dapagliflozin

,

Dapagliflozin open sugar impurity
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In Stock

CAS No.

: 2100872-88-4

Mol F.

: C21H27ClO7

Mol W.

: 426.89

Cat No.

: SA15005

Dapagliflozin Related Compound A – USP; Dapagliflozin Bromolactone impurity | 1807632-95-6 | Dapagliflozin

,

Dapagliflozin Related Compound A – USP; Dapagliflozin Bromolactone impurity
$240.00 10 mg
In Stock

CAS No.

: 1807632-95-6

Mol F.

: C21H25BrO6

Mol W.

: 453.32

Cat No.

: SA15003

Dapagliflozin Tetraacetate | 461432-25-7 | Dapagliflozin

,

Dapagliflozin Tetraacetate
$147.00 25 mg
In Stock

CAS No.

: 461432-25-7

Mol F.

: C29H33ClO10

Mol W.

: 577.02

Cat No.

: SA15015

Dapagliflozin TNG; α-D-Glucopyranoside | 714269-58-6 | Dapagliflozin

,

Dapagliflozin TNG; α-D-Glucopyranoside
$225.00 10 mg
In Stock

CAS No.

: 714269-58-6

Mol F.

: C30H35ClO11

Mol W.

: 607.05

Cat No.

: SA15033

Dapagliflozin Tri acetate | 1415905-91-7 | Dapagliflozin

,

Dapagliflozin Tri acetate
$348.00 25 mg
In Stock

CAS No.

: 1415905-91-7

Mol F.

: C27H31ClO9

Mol W.

: 534.98

Cat No.

: SA15029

Dapagliflozin Triacetate Impurity | 1443341-94-3 | Dapagliflozin

,

Dapagliflozin Triacetate Impurity
$170.00 10 mg
In Stock

CAS No.

: 1443341-94-3

Mol F.

: C27H31ClO9

Mol W.

: 535

Cat No.

: SA15050

Dapagliflozin-20Ac Furanose Impurity | Dapagliflozin

,

Dapagliflozin-20Ac Furanose Impurity
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C29H33ClO10

Mol W.

: 577.02

Cat No.

: SA15038

Darunavir Diamino (2R,3R) Isomer | NA | Darunavir

,

Darunavir Diamino (2R,3R) Isomer
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In Stock

CAS No.

: NA

Mol F.

: C20H29N3O3S

Mol W.

: 391.53

Cat No.

: SA39409

Darunavir Diamino (2S,3S) Isomer | 192800-79-6 | Darunavir

,

Darunavir Diamino (2S,3S) Isomer
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In Stock

CAS No.

: 192800-79-6

Mol F.

: C20H29N3O3S

Mol W.

: 391.53

Cat No.

: SA39408

De(cladinosyl) Clarithromycin | 118058-74-5 | Clarithromycin

,

De(cladinosyl) Clarithromycin
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In Stock

CAS No.

: 118058-74-5

Mol F.

: C30H55NO10

Mol W.

: 589.76

Cat No.

: SA17204

Deacetamide Linezolid Azide | 168828-84-0 | Linezolid

,

Deacetamide Linezolid Azide
Please enquire for price & pack size
In Stock

CAS No.

: 168828-84-0

Mol F.

: C₁₄H₁₆FN₅O₃

Mol W.

: 321.31

Cat No.

: SA17514

Deacetamide Linezolid Phthalimide | 168828-89-5 | Linezolid

,

Deacetamide Linezolid Phthalimide
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In Stock

CAS No.

: 168828-89-5

Mol F.

: C₂₂H₂₀FN₃O₅

Mol W.

: 425.41

Cat No.

: SA17513

Deacetyl Diltiazem N-Oxide | 122619-90-3 | Diltiazem

Deacetyl Diltiazem N-Oxide
$155.00 10 mg
In Stock

CAS No.

: 122619-90-3

Mol F.

: C20H24N2O4S

Mol W.

: 388.48

Cat No.

: SA19514

Deacetyl Linezolid | 168828-90-8 | Linezolid

Deacetyl Linezolid
Please enquire for price & pack size
In Stock

CAS No.

: 168828-90-8

Mol F.

: C₁₄H₁₈FN₃O₃

Mol W.

: 295.31

Cat No.

: SA17511

Deacetyl-O-demethyl Diltiazem | 142926-10-1 (HBr); 84903-82-2 | Diltiazem

Deacetyl-O-demethyl Diltiazem
$155.00 10 mg
In Stock

CAS No.

: 142926-10-1 (HBr); 84903-82-2

Mol F.

: C19H22N2O3S

Mol W.

: 358.46

Cat No.

: SA19513

Debenzoic Acid Bromotelmisartan | 1004548-55-3 | Telmisartan

,

Debenzoic Acid Bromotelmisartan
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In Stock

CAS No.

: 1004548-55-3

Mol F.

: C₂₆H₂₅BrN₄

Mol W.

: 473.41

Cat No.

: SA33919

Dechloromethyl Loteprednol Etabonate; Prednisolone 17-acid-17-ethylcarbonate | 133991-63-6 | Loteprednol

,

Dechloromethyl Loteprednol Etabonate; Prednisolone 17-acid-17-ethylcarbonate
Please enquire for price & pack size
In Stock

CAS No.

: 133991-63-6

Mol F.

: C23H30O7

Mol W.

: 418.48

Cat No.

: SA27605

Decyl Aminoquat | Colesevelam

,

Decyl Aminoquat
$400.00 25 mg
In Stock

CAS No.

: NA

Mol F.

: C19H43BrN2

Mol W.

: 379.46

Cat No.

: SA10203

Decylamine hydrochloride | 143-09-9 | Colesevelam

,

Decylamine hydrochloride
$70.00 25 mg
In Stock

CAS No.

: 143-09-9

Mol F.

: C10H24NCl

Mol W.

: 192.75

Cat No.

: SA10205

Deferasirox 1,2-isomer | 201530-78-1 | Deferasirox

,

Deferasirox 1,2-isomer
Please enquire for price & pack size
In Stock

CAS No.

: 201530-78-1

Mol F.

: C21H15N3O4

Mol W.

: 373.36

Cat No.

: SA25106

Deferasirox 1,3-isomer | 2254105-61-6 | Deferasirox

,

Deferasirox 1,3-isomer
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In Stock

CAS No.

: 2254105-61-6

Mol F.

: C21H15N3O4

Mol W.

: 373.36

Cat No.

: SA25107

Deferasirox Benzamide Impurity | 65-45-2 | Deferasirox

,

Deferasirox Benzamide Impurity
Please enquire for price & pack size
In Stock

CAS No.

: 65-45-2

Mol F.

: C7H7NO2

Mol W.

: 137.14

Cat No.

: SA25112

Deferasirox Benzoxazin Impurity | 1218-69-5 | Deferasirox

Deferasirox Benzoxazin Impurity
Please enquire for price & pack size
In Stock

CAS No.

: 1218-69-5

Mol F.

: C14H9NO3

Mol W.

: 239.23

Cat No.

: SA25101

Deferasirox Diacyl Impurity | 1972-71-0 | Deferasirox

,

Deferasirox Diacyl Impurity
Please enquire for price & pack size
In Stock

CAS No.

: 1972-71-0

Mol F.

: C14H11NO4

Mol W.

: 257.24

Cat No.

: SA25104

Deferasirox Ethyl Ester | 201530-79-2 | Deferasirox

,

Deferasirox Ethyl Ester
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In Stock

CAS No.

: 201530-79-2

Mol F.

: C23H19N3O4

Mol W.

: 401.41

Cat No.

: SA25102

Defluoro Dolutegravir | 1863916-88-4 | Dolutegravir

,

Defluoro Dolutegravir
Please enquire for price & pack size
In Stock

CAS No.

: 1863916-88-4

Mol F.

: C20H20FN3O5

Mol W.

: 401.39

Cat No.

: SA20209

Defluoro Linezolid | 556801-15-1 | Linezolid

,

Defluoro Linezolid
Please enquire for price & pack size
In Stock

CAS No.

: 556801-15-1

Mol F.

: C₁₆H₂₁N₃O₄

Mol W.

: 319.36

Cat No.

: SA17502

Dehydroxy Isoproterenol | 3506-32-9(Base);5178-52-9(HClsalt) | Isoproterenol

,

Dehydroxy Isoproterenol
Please enquire for price & pack size
In Stock

CAS No.

: 3506-32-9(Base);5178-52-9(HClsalt)

Mol F.

: C11H17NO2

Mol W.

: 195.26

Cat No.

: SA25902

Dehydroxy-(chloro) Penciclovir; Penciclovir Impurity A | 100199-40-4 | Penciclovir

Dehydroxy-(chloro) Penciclovir; Penciclovir Impurity A
$125.00 25 mg
In Stock

CAS No.

: 100199-40-4

Mol F.

: C10H14ClN5O2

Mol W.

: 271.7

Cat No.

: SA27700

Delta 6,7 Cortisone Acetate | 2435-02-1 | Cortisone Acetate

,

Delta 6,7 Cortisone Acetate
Please enquire for price & pack size
In Stock

CAS No.

: 2435-02-1

Mol F.

: C23H28O6

Mol W.

: 400.47

Cat No.

: SA43203

Delta 8,9 Cortisone Acetate | 1856-26-4 | Cortisone Acetate

,

Delta 8,9 Cortisone Acetate
Please enquire for price & pack size
In Stock

CAS No.

: 1856-26-4

Mol F.

: C23H28O6

Mol W.

: 400.5

Cat No.

: SA43202

Delta-16, 17-Betamethasone, Δ16, 17-Betamethasone | 59860-99-0 | Betamethasone

,

Delta-16, 17-Betamethasone, Δ16, 17-Betamethasone
$1,095.00 25 mg
In Stock

CAS No.

: 59860-99-0

Mol F.

: C22H27FO4

Mol W.

: 374.45

Cat No.

: SA26614

Deoxy Donepezil Impurity | 844694-84-4(base); 1034439-57-0(HCl Salt) | Donepezil

Deoxy Donepezil Impurity
$225.00 25 mg
In Stock

CAS No.

: 844694-84-4(base); 1034439-57-0(HCl Salt)

Mol F.

: C24H31NO2

Mol W.

: 365.51

Cat No.

: SA34312

Deoxycholic acid | 83-44-3 | Ursodiol

,

Deoxycholic acid
Please enquire for price & pack size
In Stock

CAS No.

: 83-44-3

Mol F.

: C24H40O4

Mol W.

: 392.57

Cat No.

: SA31205

Des Carbaldehyde Alcaftadine | 147083-12-3 | Alcaftadine

,

Des Carbaldehyde Alcaftadine
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In Stock

CAS No.

: 147083-12-3

Mol F.

: C18H23N3

Mol W.

: 281.4

Cat No.

: SA31006

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