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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Spdb-dm4 chemical structure

CAS: 1626359-62-3
Formula: C₄₆H₆₃ClN₄O₁₄S₂
MW: 995.6 g/mol

VQ-049049

Reference Standard

Spectinomycin chemical structure

CAS: 1695-77-8
Formula: C₁₄H₂₄N₂O₇
MW: 332.35 g/mol

VQ-042246

Reference Standard

Spectinomycin Dihydrochloride chemical structure

Spectinomycin Dihydrochloride

CAS: 21736-83-4
Formula: C₁₄H₂₆Cl₂N₂O₇
MW: 405.3 g/mol

VQ-042241

Reference Standard

Spectinomycin Dihydrochloride EP Impurity C chemical structure

Spectinomycin Dihydrochloride EP Impurity C

CAS: 56845-72-8
Formula: C₁₄H₂₈Cl₂N₂O₇
MW: 407.3 g/mol

VQ-042245

Reference Standard

Spectinomycin EP Impurity D chemical structure

Spectinomycin EP Impurity D

CAS: 935756-69-7
Formula: C₁₄H₂₆N₂O₈
MW: 350.36 g/mol

VQ-028105

Reference Standard

Spectinomycin EP Impurity E chemical structure

Spectinomycin EP Impurity E

CAS: 88270-91-1
Formula: C₁₃H₂₂N₂O₇
MW: 318.32 g/mol

VQ-028106

Reference Standard

Spectinomycin EP Impurity F chemical structure

Spectinomycin EP Impurity F

CAS: 1323437-06-4
Formula: C₁₄H₂₆N₂O₇
MW: 334.37 g/mol

VQ-033935

Reference Standard

Spectinomycin EP Impurity G (Free Base) chemical structure

Spectinomycin EP Impurity G (Free Base)

CAS: 1323437-07-5
Formula: C₁₄H₂₄N₂O₈
MW: 348.35 g/mol

VQ-028107

Reference Standard

Spectinomycin Hydrochloride chemical structure

Spectinomycin Hydrochloride

CAS: 22193-75-5
Formula: C₁₄H₂₅ClN₂O₇
MW: 368.81 g/mol

VQ-042243

Reference Standard

Spectinomycin sulfate chemical structure

Spectinomycin sulfate

CAS: 23312-56-3
Formula: C₁₄H₂₆N₂O₁₁S
MW: 430.43 g/mol

VQ-042244

Reference Standard

Spectinomycin Sulfate EP Impurity A chemical structure

Spectinomycin Sulfate EP Impurity A

CAS: 6216-38-2
Formula: C₈H₁₈N₂O₄
MW: 206.24 g/mol

VQ-028103

Reference Standard

Spectinomycin Sulfate EP Impurity C chemical structure

Spectinomycin Sulfate EP Impurity C

CAS: 63393-23-7
Formula: C₁₄H₂₆N₂O₇
MW: 334.37 g/mol

VQ-028104

Reference Standard

Spectinomycin Sulfate Tetrahydrate chemical structure

Spectinomycin Sulfate Tetrahydrate

CAS: 64058-48-6
Formula: C₁₄H₃₄N₂O₁₅S
MW: 502.5 g/mol

VQ-042242

Reference Standard

Spilanthol chemical structure

CAS: 25394-57-4
Formula: C₁₄H₂₃NO
MW: 221.34 g/mol

VQ-033936

Reference Standard

Spinetoram J chemical structure

CAS: 187166-40-1
Formula: C₄₂H₆₉NO₁₀
MW: 748 g/mol

VQ-042248

Reference Standard

Spinosad Desmethyl Nitroso Impurity A&D (St-I)

Spinosad Desmethyl Nitroso Impurity A&D (St-I)

Formula: C₄₀H₆₃NO₁₀
MW: 717.93 g/mol

In stock

Reference Standard

Spinosyn A chemical structure

CAS: 131929-60-7
Formula: C₄₁H₆₅NO₁₀
MW: 732 g/mol

VQ-039285

Reference Standard

Spinosyn A 17-Pseudoaglycone chemical structure

Spinosyn A 17-Pseudoaglycone

CAS: 131929-68-5
Formula: C₃₃H₅₀O₉
MW: 590.7 g/mol

VQ-042249

Reference Standard

Spinosyn D 17-Pseudoaglycone chemical structure

Spinosyn D 17-Pseudoaglycone

CAS: 131929-55-0
Formula: C₃₄H₅₂O₉
MW: 604.8 g/mol

VQ-042250

Reference Standard

Spinosyn F chemical structure

CAS: 131929-65-2
Formula: C₄₀H₆₃NO₁₀
MW: 717.9 g/mol

VQ-042252

Reference Standard

Spinosyn G chemical structure

CAS: 132016-82-1
Formula: C₄₁H₆₅NO₁₀
MW: 732 g/mol

VQ-042255

Reference Standard

Spinosyn H chemical structure

CAS: 131929-66-3
Formula: C₄₀H₆₃NO₁₀
MW: 717.9 g/mol

VQ-042253

Reference Standard

Spinosyn impurity E

Spinosyn impurity E

CAS: 159195-06-9
Formula: C₃₉H₆₁NO₁₀
MW: 703.9 g/mol

VQ-042256

Reference Standard

Spinosyn J chemical structure

CAS: 131929-67-4
Formula: C₄₀H₆₃NO₁₀
MW: 717.9 g/mol

VQ-042254

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