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Aspirin Related Products


SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Aspirin, pharmacopeial and non-pharmacopeial Aspirin impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Aspirin impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Aspirin-related products are thoroughly characterized. Aspirin products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

Acetylsalicylic Acid

Picture of Acetylsalicylic Acid
SZ CAT No:: SZ-A046011
CAS No: 50-78-2
Mol.F.: C9H8O4
Mol.Wt.: 180.2
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity A (Aspirin Impurity A)

Picture of Acetylsalicylic Acid EP Impurity A (Aspirin Impurity A)
SZ CAT No:: SZ-A046001
CAS No: 99-96-7
Mol.F.: C7H6O3 
Mol.Wt.: 138.1
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity B (Aspirin Impurity B)

Picture of Acetylsalicylic Acid EP Impurity B (Aspirin Impurity B)
SZ CAT No:: SZ-A046002
CAS No: 636-46-4
Mol.F.: C8H6O5
Mol.Wt.: 182.1
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity C (Aspirin Impurity C)

Picture of Acetylsalicylic Acid EP Impurity C (Aspirin Impurity C)
SZ CAT No:: SZ-A046003
CAS No: 69-72-7
Mol.F.: C7H6O3
Mol.Wt.: 138.1
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity D (Aspirin Impurity D)

Picture of Acetylsalicylic Acid EP Impurity D (Aspirin Impurity D)
SZ CAT No:: SZ-A046004
CAS No: 530-75-6
Mol.F.: C16H12O6 
Mol.Wt.: 300.3
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity E (Aspirin Impurity E)

Picture of Acetylsalicylic Acid EP Impurity E (Aspirin Impurity E)
SZ CAT No:: SZ-A046005
CAS No: 552-94-3
Mol.F.: C14H10O5
Mol.Wt.: 258.2
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity F (Aspirin Impurity F)

Picture of Acetylsalicylic Acid EP Impurity F (Aspirin Impurity F)
SZ CAT No:: SZ-A046006
CAS No: 1466-82-6
Mol.F.: C18H14O7
Mol.Wt.: 342.3
Inv. Status: In Stock

5-Methoxy Carbonyl Salicylamide

Picture of 5-Methoxy Carbonyl Salicylamide
SZ CAT No:: SZ-A046013
CAS No: 63874-38-4
Mol.F.: C9H9NO4
Mol.Wt.: 195.2
Inv. Status: Custom Synthesis

Acetylsalicyclic Acid Impurity 2

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SZ CAT No:: SZ-A046010
CAS No: 2708578-72-5
Mol.F.: C16H12O6
Mol.Wt.: 300.3
Inv. Status: Custom Synthesis

Acetylsalicyclic Acid Impurity 4

Picture of Acetylsalicyclic Acid Impurity 4
SZ CAT No:: SZ-A046017
CAS No: 67127-78-0
Mol.F.: C9H8O4
Mol.Wt.: 180.2
Inv. Status: Custom Synthesis

Acetylsalicyclic Acid Impurity 5

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SZ CAT No:: SZ-A046018
CAS No: 13110-96-8
Mol.F.: C9H8O4
Mol.Wt.: 180.2
Inv. Status: Custom Synthesis

Acetylsalicylic acid acyl-d-glucuronide (Aspirin acyl-d-glucuronide)

Picture of Acetylsalicylic acid acyl-d-glucuronide (Aspirin acyl-d-glucuronide)
SZ CAT No:: SZ-A046007
CAS No: 24719-72-0
Mol.F.: C15H16O10
Mol.Wt.: 356.3
Inv. Status: Custom Synthesis

Acetylsalicylic Acid Impurity 3

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SZ CAT No:: SZ-A046014
CAS No: 18698-59-4
Mol.F.: C11H10O5
Mol.Wt.: 222.2
Inv. Status: Custom Synthesis

Methyl 2-Methoxy Benzoate

Picture of Methyl 2-Methoxy Benzoate
SZ CAT No:: SZ-A046015
CAS No: 606-45-1
Mol.F.: C9H10O3
Mol.Wt.: 166.2
Inv. Status: Custom Synthesis

Methyl 4-Methoxy Benzoate

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SZ CAT No:: SZ-A046016
CAS No: 121-98-2
Mol.F.: C9H10O3
Mol.Wt.: 166.2
Inv. Status: Custom Synthesis

Salicyl Sulfate Disodium Salt

Picture of Salicyl Sulfate Disodium Salt
SZ CAT No:: SZ-A046012
CAS No: 56343-01-2
Mol.F.: C7H6O6S : 2(Na)
Mol.Wt.: 218.2 : 2(23.0)
Inv. Status: Custom Synthesis

Tri-Salicylic Acid

Picture of Tri-Salicylic Acid
SZ CAT No:: SZ-A046019
CAS No: 85531-17-5
Mol.F.: C21H14O7
Mol.Wt.: 378.3
Inv. Status: Custom Synthesis

Stable Isotopes And Metabolites

Acetylsalicylic Acid-D3 (Aspirin-D3)

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SZ CAT No:: SZ-A046D02
CAS No: 921943-73-9
Mol.F.: C9H5D3O4
Mol.Wt.: 183.2
Inv. Status: In Stock

Acetylsalicylic Acid EP Impurity A-13C6

Picture of Acetylsalicylic Acid EP Impurity A-13C6
SZ CAT No:: SZ-A046D04
CAS No: 287399-29-5
Mol.F.: C13C6H6O3
Mol.Wt.: 144.1
Inv. Status: Custom Synthesis

Acetylsalicylic Acid-D4 (Aspirin-D4)

Picture of Acetylsalicylic Acid-D4 (Aspirin-D4)
SZ CAT No:: SZ-A046D01
CAS No: 97781-16-3
Mol.F.: C9H4O4D4
Mol.Wt.: 184.2
Inv. Status: Custom Synthesis

Salicylic Acid-d4

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SZ CAT No:: SZ-A046D03
CAS No: 78646-17-0
Mol.F.: C7H2D4O3
Mol.Wt.: 142.1
Inv. Status: Custom Synthesis
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