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Impurities & Reference Standards

API Impurities

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

14,252products

1,516in stock

COA + SDSwith every lot

Reference Standard

D-Cys Carbetocin

D-Cys Carbetocin

CAS: 1515871-10-9
Formula: C₄₅H₆₉N₁₁O₁₂S
MW: 988.16 g/mol

VQ-027159

Reference Standard

D-Cys(6)-Vasopressin

D-Cys(6)-Vasopressin

CAS: 163659-75-4
Formula: C₄₆H₆₅N₁₅O₁₂S₂
MW: 1084.23 g/mol

VQ-044291

Reference Standard

D-Cys(7)-Lanreotide

D-Cys(7)-Lanreotide

CAS: 205234-53-3
Formula: C₅₄H₆₉N₁₁O₁₀S₂
MW: 1096.32 g/mol

VQ-031435

Reference Standard

D-Folic Acid chemical structure

CAS: 65165-91-5
Formula: C₁₉H₁₉N₇O₆
MW: 441.4 g/mol

VQ-030857

Reference Standard

D-Gln(4)-Vasopressin

D-Gln(4)-Vasopressin

CAS: 76023-59-1
Formula: C₄₆H₆₅N₁₅O₁₂S₂
MW: 1084.23 g/mol

VQ-034555

Reference Standard

D-Glucono-1,4-Lactone chemical structure

D-Glucono-1,4-Lactone

CAS: 1198-69-2
Formula: C₆H₁₀O₆
MW: 178.14 g/mol

VQ-027194

Reference Standard

D-Glucopyranoside methyl 2,6-dipalmitate chemical structure

D-Glucopyranoside methyl 2,6-dipalmitate

CAS: 82933-92-4
Formula: C₃₉H₇₄O₈
MW: 671 g/mol

VQ-051541

Reference Standard

D-Glucosamic Acid chemical structure

D-Glucosamic Acid

CAS: 3646-68-2
Formula: C₆H₁₃NO₆
MW: 195.17 g/mol

VQ-045224

Reference Standard

D-Homo B Derivative Bethamethasone chemical structure

D-Homo B Derivative Bethamethasone

CAS: 1201919-18-7
Formula: C₂₂H₂₈FNa₂O₈P
MW: 516.4 g/mol

VQ-020948

Reference Standard

D-Homo C Derivative of Betamethasone Sodium Phosphate chemical structure

D-Homo C Derivative of Betamethasone Sodium Phosphate

CAS: 1201919-11-0
Formula: C₂₂H₂₈FNa₂O₈P
MW: 516.4 g/mol

VQ-021811

Reference Standard

D-Homoanalog Of Triamcinolone chemical structure

D-Homoanalog Of Triamcinolone

CAS: 130063-07-9
Formula: C₂₁H₂₇FO₆
MW: 394.4 g/mol

VQ-042666

Reference Standard

D-Iditol chemical structure

CAS: 25878-23-3
Formula: C₆H₁₄O₆
MW: 182.17 g/mol

VQ-027065

Reference Standard

D-Isomer Melphalan Hydrochloride chemical structure

D-Isomer Melphalan Hydrochloride

CAS: 4213-32-5
Formula: C₁₃H₁₉Cl₃N₂O₂
MW: 341.7 g/mol

VQ-028909

Reference Standard

D-Mannose-6-phosphate Disodium Salt chemical structure

D-Mannose-6-phosphate Disodium Salt

CAS: 33068-18-7
Formula: C₆H₁₁Na₂O₉P
MW: 304.1 g/mol

VQ-052161

Reference Standard

D-N-Acetylphenylalaninol chemical structure

D-N-Acetylphenylalaninol

CAS: 52485-50-4
Formula: C₁₁H₁₅NO₂
MW: 193.24 g/mol

VQ-040198

Reference Standard

D-Neopterin chemical structure

CAS: 2009-64-5
Formula: C₉H₁₁N₅O₄
MW: 253.22 g/mol

VQ-023225

Reference Standard

D-Penicillamine Disulfide chemical structure

D-Penicillamine Disulfide

CAS: 20902-45-8
Formula: C₁₀H₂₀N₂O₄S₂
MW: 296.4 g/mol

VQ-033096

Reference Standard

D-Phenylalanyl-D-leucine chemical structure

D-Phenylalanyl-D-leucine

CAS: 123442-34-2
Formula: C₁₅H₂₂N₂O₃
MW: 278.35 g/mol

VQ-030196

Reference Standard

D-Phenylalanyl-D-phenylalanyl-D-leucine

D-Phenylalanyl-D-phenylalanyl-D-leucine

CAS: 2219351-85-4
Formula: C₂₄H₃₁N₃O₄
MW: 425.52 g/mol

VQ-048016

Reference Standard

D-Phenylglycinamide chemical structure

D-Phenylglycinamide

CAS: 6485-67-2
Formula: C₈H₁₀N₂O
MW: 150.18 g/mol

VQ-024906

Reference Standard

D-Pyroglutamic Acid chemical structure

D-Pyroglutamic Acid

CAS: 4042-36-8
Formula: C₅H₇NO₃
MW: 129.11 g/mol

VQ-038996

Reference Standard

D-Ser4-Triptorelin chemical structure

D-Ser4-Triptorelin

CAS: 102992-39-2
Formula: C₆₆H₈₃F₃N₁₈O₁₅
MW: 1425.5 g/mol

VQ-028549

Reference Standard

D-Serine Methyl Ester Hydrochloride chemical structure

D-Serine Methyl Ester Hydrochloride

CAS: 5874-57-7
Formula: C₄H₁₀ClNO₃
MW: 155.58 g/mol

VQ-029958

Reference Standard

D-Tagatopyranose chemical structure

D-Tagatopyranose

CAS: 41847-61-4
Formula: C₆H₁₂O₆
MW: 180.16 g/mol

VQ-048775

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