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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Diclofenac, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Diclofenac impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Diclofenac-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Diclofenac Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[Ring-13C6]-Diclofenac Stable Isotopes CS-EK-00123 1261393-71-8 Enquire
2-(2,6-Dichlorophenoxy)-N-phenylacetamide-13C6 Stable Isotopes CS-T-102436 146607-19-4(Unlabelled) Enquire
2-Chloro-N-(2,6-dichlorophenyl)-N-phenylacetamide-13C6 Stable Isotopes CS-T-102432 15308-01-7(Unlabelled) Enquire
2-Chloro-N-phenylacetamide- 13C6 Stable Isotopes CS-T-102437 587-65-5(Unlabelled) Enquire
4'-Hydroxy Diclofenac-13C6 Stable Isotopes CS-O-13600 1189656-64-1 In Stock
4-Hydroxy Diclofenac-d4 Stable Isotopes CS-T-55794 254762-27-1 In Stock
4-Hydroxy-Diclofenac-d4 Acyl Glucuronide Stable Isotopes CS-P-02886 538357-85-6 (Unlabeled) Enquire
5-Hydroxy Diclofenac-d5 Stable Isotopes CS-T-103971 69002-84-2(unlabelled) Enquire
Diclofenac Amide-13C6 (~5% unlabelled) Stable Isotopes CS-T-100473 Not Available Enquire
Diclofenac-d4 Stable Isotopes CS-O-06542 153466-65-0 In Stock
Diclofenac-d6 Stable Isotopes CS-O-15041 1401311-57-6 Enquire
N-(2,6-Dichlorophenyl)aniline-13C6 Stable Isotopes CS-T-102433 15307-93-4(Unlabelled) Enquire
N-Nitroso Diclofenac D4 Stable Isotopes CS-O-49510 66505-80-4 (Unlabelled) Enquire
[U-Ring-13C6]-Diclofenac metabolite Stable Isotopes CS-EK-01954 73328-71-9 unlabeled Enquire
Diclofenac 13C6 sodium hydrate Stable Isotopes CS-O-34409 Not Available Enquire
Diclofenac 13C6 Sodium Salt Stable Isotopes CS-T-52696 1261393-73-0 Enquire
Diclofenac-13C6-Na hydrate Stable Isotopes CS-W-00376 1261393-73-0(free hydrate) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diclofenac API CS-O-00235 15307-86-5 In Stock
Diclofenac cholestyramine API CS-O-16157 240490-15-7 In Stock
Diclofenac diethylamine API CS-O-00280 78213-16-8 In Stock
Diclofenac Potassium API CS-O-00281 15307-81-0 In Stock
Diclofenac Sodium API CS-O-07097 15307-79-6 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Hydroxy Diclofenac Metabolite CS-W-00199 64118-84-9 In Stock
Diclofenac ethyl ester Metabolite CS-O-07099 15307-77-4 In Stock
Diclofenac Methyl Ester Metabolite CS-O-07098 15307-78-5 In Stock
4-Hydroxy Diclofenac Metabolite CS-P-02873 Not Available Enquire
Diclofenac Metabolite M28 Metabolite CS-O-38827 1488365-40-7 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-hydroxypropyl 2-(2-((2,6-dichlorophenyl)amino)phenyl)aceta... Impurity CS-O-35424 95093-56-4 In Stock
3-Acetyl-4-(2-Hydroxy-3-isopropylamino-3-propxy)-aniline Impurity CS-O-53940 ---- Enquire
3-benzylidene Diclofenac Amide Impurity CS-O-45284 461038-74-4 Enquire
Benzyl Ester of Diclofenac Impurity CS-O-51662 17695-05-5 Enquire
Diclofenac 2,5-Quinone Imine Impurity CS-P-07604 1254576-93-6 Enquire
Diclofenac Carboxylic Acid Impurity CS-T-17657 13625-57-5 In Stock
Diclofenac Chloroacetyl Impurity Impurity CS-O-11371 15308-01-7 In Stock
Diclofenac Dimer Impurity Impurity CS-P-07603 1609187-32-7 Enquire
Diclofenac EP Impurity B Impurity CS-T-52646 22121-58-0 In Stock
Diclofenac EP Impurity D Impurity CS-T-17836 127792-45-4 In Stock
Diclofenac EP Impurity E Impurity CS-T-29316 59-48-3 In Stock
Diclofenac EP Impurity F Impurity CS-T-52586 560075-65-2 In Stock
Diclofenac glyoxillic acid Impurity CS-EO-01460 66156-75-0 Enquire
Diclofenac Impurity 26 Impurity CS-O-58194 1470584-30-5 Enquire
Diclofenac Impurity 27 Impurity CS-SN-00176 1609187-30-5 Enquire
Diclofenac Impurity C Impurity CS-O-31069 27204-57-5 In Stock
Diclofenac Impurity D Impurity CS-P-00399 127792-23-8 In Stock
diclofenac impurity F Impurity CS-DL-00526 124426-56-8 In Stock
N-benzyl diclofenac Impurity CS-O-51664 70690-44-7 In Stock
1-hydroxypropan-2-yl 2-(2-((2,6-dichlorophenyl)amino)phenyl)... Impurity CS-O-35425 Not Available Enquire
3’-Hydroxy Diclofenac Impurity CS-T-78711 69002-85-3 Enquire
3'-Hydroxy-4'-methoxydiclofenac Impurity CS-T-27811 106610-60-0 Enquire
Diclofenac dodecyl ester Impurity CS-DX-00009 Not Available Enquire
Diclofenac Impurity 2 Impurity CS-P-08531 Not Available Enquire
Diclofenac Related Compound 3 Impurity CS-P-07605 84803-53-2 Enquire
diclofenac sodium impurity IP (2-[(2, 6-dichlorophenyl) amin... Impurity CS-O-44349 Not Available Enquire
Diclofenac tetradecyl ester Impurity CS-DX-00010 Not Available Enquire
Hydroxydiclofenac Impurity CS-W-00377 64118-84-9 Enquire
Keto Diclofenac Sodium Salt Impurity CS-T-56996 70757-34-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,6-Dichlorodiphenylamine Intermediate CS-T-17489 15307-93-4 In Stock
2-Chloro-N-phenylacetamide Intermediate CS-M-18860 587-65-5 In Stock
Diethyl Phthalate Intermediate CS-T-18248 84-66-2 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diclofenac Acyl-Beta-D-glucuronide Glucuronide CS-O-07795 64118-81-6 Enquire
Diclofenac Acyl-β-D-glucuronide Allyl Ester Glucuronide CS-T-52698 698358-10-0 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Isopropyl Ester of Diclofenac Fine Chemicals CS-CY-00072 66370-79-4 In Stock
2,4,6-trichloro-N-phenylaniline Fine Chemicals CS-ED-01768 15362-44-4 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-(3-Chlorophenyl)-N-phenylnitrous amide Nitrosamine CS-O-54512 68962-15-2 Enquire
N-Nitroso Diclofenac Desacetate Nitrosamine CS-O-58230 3075173-07-5 Enquire
N-Nitroso Diclofenac ethyl Ester Nitrosamine CS-O-48690 Not Available Enquire
N-Nitroso Diclofenac Methyl Ester Nitrosamine CS-O-48689 Not Available Enquire
N-Nitroso-Diclofenac Nitrosamine CS-O-38044 66505-80-4 In Stock


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diclofenac sodium Secondary Standards CS-SS-24010 15307-79-6 Enquire
Diclofenac Impurity B Secondary Standards CS-SS-25278-100MG 22121-58-0 Enquire
Diclofenac Impurity C Secondary Standards CS-SS-25279-100MG 27204-57-5 Enquire
Diclofenac Impurity D Secondary Standards CS-SS-25281-100MG 127792-23-8 Enquire
Diclofenac Impurity E Secondary Standards CS-SS-25277-100MG 59-48-3 Enquire
Diclofenac Impurity F Secondary Standards CS-SS-25280-100MG 560075-65-2 Enquire
Diclofenac potassium Secondary Standards CS-SS-25275-500MG 15307-81-0 Enquire
Diclofenac Related Compound A Secondary Standards CS-SS-25276-100MG 15362-40-0 Enquire
Diclofenac sodium Secondary Standards CS-SS-24010-250MG 15307-79-6 Enquire
Diclofenac sodium Secondary Standards CS-SS-24010-1GM 15307-79-6 In Stock


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diclofenac-d4 Sodium Salt (phenyl-d4-acetic) Stable Isotope Reagent CS-C-00753 154523-54-3 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Diclofenac Epolamine Therapeutic CS-T-52697 119623-66-4 In Stock


Pharmaceutical Stds.

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4',5-Dihydroxy Diclofenac Pharmaceutical Stds. CS-TB-15827 69002-86-4 Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso-Diclofenac Analytical Standard CS-O-38044-10MG 66505-80-4 Enquire
N-nitroso-diclofenac-100 PPM in Acetonitrile Analytical Standard CS-O-38044-1.5ML 66505-80-4 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,4-Dichlorodiphenylamine Building Blocks CS-O-46083 58373-59-4 Enquire