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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

Diricinoleoyl Stearoyl Glycerol Impurity chemical structure

Diricinoleoyl Stearoyl Glycerol Impurity

CAS: 303082-20-4
Formula: C₅₇H₁₀₆O₈
MW: 919.4 g/mol

VQ-004806

Reference Standard

Diroximel Fumarate Impurity - 3

Diroximel Fumarate Impurity - 3

CAS: 2231299-63-9
Formula: C₇H₁₁NO₄
MW: 173.17 g/mol

In stock

Reference Standard

Diroximel Fumarate Impurity -2 chemical structure

Diroximel Fumarate Impurity -2

Formula: C₁₁H₁₅NO₇
MW: 273.24 g/mol

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Reference Standard

Diroximel Fumarate Impurity E chemical structure

Diroximel Fumarate Impurity E

Formula: C₁₁H₁₃NO₆
MW: 255.22 g/mol

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Reference Standard

Diroximel Fumarate Impurity F

Diroximel Fumarate Impurity F

CAS: 35060-68-5
Formula: C₁₆H₂₀N₂O₈
MW: 368.34 g/mol

In stock

Reference Standard

Diroximel Fumarate Impurity G chemical structure

Diroximel Fumarate Impurity G

CAS: 2101811-40-7
Formula: C₁₆H₁₈N₂O₈
MW: 366.32 g/mol

In stock

Reference Standard

Diroximel Fumarate Impurity H

Diroximel Fumarate Impurity H

Formula: C₁₇H₂₂N₂O₉
MW: 398.37 g/mol

In stock

Reference Standard

Disodium Clodronate Tetrahydrate chemical structure

Disodium Clodronate Tetrahydrate

CAS: 88416-50-6
Formula: CH₁₀Cl₂Na₂O₁₀P₂
MW: 360.91 g/mol

VQ-039049

Reference Standard

Disodium Pamidrote chemical structure

Disodium Pamidrote

CAS: 109552-15-0
Formula: C₃H₁₉NNa₂O₁₂P₂
MW: 369.11 g/mol

VQ-027378

Reference Standard

Disopyramide Phosphate chemical structure

Disopyramide Phosphate

CAS: 22059-60-5
Formula: C₂₁H₃₂N₃O₅P
MW: 437.5 g/mol

VQ-030235

Reference Standard

Distearyl Fumarate chemical structure

Distearyl Fumarate

CAS: 7283-68-3
Formula: C₄₀H₇₆O₄
MW: 621 g/mol

VQ-042215

Reference Standard

Disulfamide chemical structure

CAS: 671-88-5
Formula: C₇H₉ClN₂O₄S₂
MW: 284.7 g/mol

VQ-038367

Reference Standard

Dl-Alpha-Tocopherol Acetate chemical structure

Dl-Alpha-Tocopherol Acetate

CAS: 52225-20-4
Formula: C₃₁H₅₂O₃
MW: 472.7 g/mol

VQ-034665

Reference Standard

DL-Arginine chemical structure

CAS: 7200-25-1
Formula: C₆H₁₄N₄O₂
MW: 174.2 g/mol

VQ-022930

Reference Standard

DL-Carbidopa chemical structure

CAS: 302-53-4
Formula: C₁₀H₁₄N₂O₄
MW: 226.23 g/mol

VQ-029634

Reference Standard

DL-Carnitine chemical structure

CAS: 406-76-8
Formula: C₇H₁₅NO₃
MW: 161.2 g/mol

VQ-032343

Reference Standard

DL-Dopaquinone chemical structure

CAS: 4430-97-1
Formula: C₉H₉NO₄
MW: 195.17 g/mol

VQ-032764

Reference Standard

DL-Dropropizine N,N-Dioxide chemical structure

DL-Dropropizine N,N-Dioxide

CAS: 152237-41-7
Formula: C₁₃H₂₀N₂O₄
MW: 268.31 g/mol

VQ-026439

Reference Standard

DL-Glyceric acid chemical structure

DL-Glyceric acid

CAS: 473-81-4
Formula: C₃H₆O₄
MW: 106.08 g/mol

VQ-040649

Reference Standard

DL-Homocysteine chemical structure

DL-Homocysteine

CAS: 454-29-5
Formula: C₄H₉NO₂S
MW: 135.19 g/mol

VQ-031398

Reference Standard

DL-Homocysteine Thiolactone HCL chemical structure

DL-Homocysteine Thiolactone HCL

CAS: 6038-19-3
Formula: C₄H₈ClNOS
MW: 153.63 g/mol

VQ-032933

Reference Standard

DL-Lysine Acetylsalicylate - Impurity D (Hydrochloride Salt) chemical structure

DL-Lysine Acetylsalicylate - Impurity D (Hydrochloride Salt)

CAS: 29426-64-0
Formula: C₆H₁₃ClN₂O
MW: 164.63 g/mol

VQ-051182

Reference Standard

DL-Lysine Acetylsalicylate - Impurity E chemical structure

DL-Lysine Acetylsalicylate - Impurity E

CAS: 1071-49-4
Formula: C₈H₁₆N₂O₃
MW: 188.22 g/mol

VQ-048043

Reference Standard

DL-Lysine Acetylsalicylate - Impurity F chemical structure

DL-Lysine Acetylsalicylate - Impurity F

CAS: 24321-24-2
Formula: C₈H₁₆N₂O₃
MW: 188.22 g/mol

VQ-048044

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