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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Quinone, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Quinone 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 Quinone-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.

Quinone Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Anthraquinonesulfonic Acid Sodium Salt-d7 Stable Isotopes CS-T-99379 Not Available Enquire
5,6-Orthoquinone Primaquine-d6 Hydrobromide (Major) (~85%) Stable Isotopes CS-T-99923 Not Available Enquire
5-Methoxy-2-methyl-1,4-naphthoquinone-d3 Stable Isotopes CS-T-101145 22266-99-5(Unlabelled) Enquire
Menaquinone 4-d7(Mixture of cis-trans isomers) Stable Isotopes CS-T-95475 1233937-25-1 Enquire
Menaquinone 7-d7 2,3-Epoxide Stable Isotopes CS-T-101157 Not Available Enquire
Menaquinone-4-[13C6] (MK4-[13C6]) Stable Isotopes CS-I-00437 Not Available Enquire
Menaquinone-7-[13C6] (MK7-[13C6]) Stable Isotopes CS-I-00438 Not Available Enquire
Menaquinone-9-[13C6] (MK-9-[13C6]) Stable Isotopes CS-I-00439 Not Available Enquire
Menaquinone-9-[d7] (MK9-[d7]) Stable Isotopes CS-I-00440 Not Available Enquire
Mitoquinone-d15 Mesylate Stable Isotopes CS-T-102208 Not Available Enquire
N-Acetyl-4-benzoquinone Imine-D3 Stable Isotopes CS-T-94753 50700-49-7(Unlabelled) Enquire
p-Benzoquinone-13C6 Stable Isotopes CS-T-95658 153001-29-7 Enquire
Phylloquinone-d3 Stable Isotopes CS-B-00351 84-80-0 (unlabeled) Enquire
Thymoquinone-13C,d3 Stable Isotopes CS-T-103796 490-91-5(unlabelled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Anthraquinone API CS-T-03970 84-65-1 Enquire
Dopaquinone API CS-T-53971 25520-73-4 Enquire
Dopaquinone (Racemic) API CS-O-42530 4430-97-1 Enquire
Hydroquinone API CS-T-26487 123-31-9 In Stock
Menaquinone 10 API CS-T-31769 523-40-0 Enquire
Menaquinone 8 API CS-T-31767 523-38-6 Enquire
Menaquinone 9 API CS-T-57478 523-39-7 In Stock
Menaquinone-7 API CS-T-57476 2124-57-4 In Stock
Thymohydroquinone API CS-T-86715 2217-60-9 Enquire
Thymoquinone API CS-T-44330 490-91-5 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,4-Diamino-2,3-dichloroanthraquinone Impurity CS-DE-01665 81-42-5 Enquire
1,4-Diaminoanthraquinone Impurity CS-T-16821 128-95-0 Enquire
2,6-Dimethoxy-1,4-benzoquinone Impurity CS-BT-00071 530-55-2 Enquire
Anthraquinone Impurity 8 Impurity CS-O-59924 518-83-2 Enquire
Cannabidiol hydroxyquinone Impurity CS-O-40796 137252-25-6 Enquire
Hydroquinone Impurity 1 Impurity CS-P-01766 2474-72-8 Enquire
Hydroquinone Impurity 9 Impurity CS-O-56851 2749982-54-3 Enquire
Menaquinone 4 2,3-Epoxide Impurity CS-T-31773 72908-86-2 Enquire
Pyrroloquinoline quinone Impurity CS-T-53014 72909-34-3 Enquire
Rifapentine Quinone Impurity CS-EO-01925 ---- Enquire
Tigecycline (open C-ring D-ring) Quinone Impurity CS-T-62073 1268494-46-7 In Stock


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(Chloromethyl)anthraquinone Intermediate CS-ED-42178 6374-87-4 Enquire
4-bromo-1-hydroxyanthraquinone-2-carboxylic acid Intermediate CS-ED-42177 320576-21-4 Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Pyronaridine Quinoneimine (M3) Glucuronide CS-O-59730 808135-31-1 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,2-Benzoquinone Fine Chemicals CS-BX-02867 583-63-1 Enquire
1,4-Dihydroxyanthraquinone Fine Chemicals CS-ZH-03064 81-64-1 Enquire
1,4-naphthaquinone Fine Chemicals CS-O-10742 130-15-4 Enquire
1-Amino-2-bromo-4-hydroxyanthraquinone Fine Chemicals CS-ED-42179 116-82-5 Enquire
2,3-Dichlorohydroquinone Fine Chemicals CS-O-59937 608-44-6 Enquire
2,6-Di-Tert-Butyl-p-Benzoquinone Fine Chemicals CS-T-17352 719-22-2 In Stock
2,7-Dimethoxy-1,4-naphthoquinone Fine Chemicals CS-O-57797 6223-34-3 Enquire
2-Carboxyquinone Fine Chemicals CS-T-69305 5794-62-7 Enquire
2-Chloro-1,4-naphthoquinone Fine Chemicals CS-O-10911 1010-60-2 In Stock
2-Hydroxy-1,4-naphthoquinone Fine Chemicals CS-DV-01731 83-72-7 In Stock
2-Methyl-5-methoxy-6-hydroxy-1,4-naphthoquinone Fine Chemicals CS-O-57598 7539-90-4 Enquire
2-Methyl-6-phytylhydroquinone Fine Chemicals CS-BL-00108 54432-31-4 Enquire
Dibromothymoquinone Fine Chemicals CS-ED-00437 29096-93-3 Enquire
Dopamine quinone Fine Chemicals CS-ZG-84048 50673-96-6 Enquire
Thymohydroquinone (THQ) Fine Chemicals CS-AF-00121 2217-60-9 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(±)-Epichlorohydrin-2-d1(stabilized withhydroquinone) Stable Isotope Reagent CS-C-01939 70735-27-2 Enquire
Acrylonitrile-2-d1(stabilized with hydroquinone) Stable Isotope Reagent CS-C-01656 4635-82-9 Enquire
Methyl Acrylate-d3(stabilized withhydroquinone) Stable Isotope Reagent CS-C-02089 71016-31-4 Enquire
Methyl Methacrylate-3,3-d2 (stabilized with hydroquinone) Stable Isotope Reagent CS-C-02116 55063-97-3 Enquire
Styrene-beta,beta-d2 (stabilized with hydroquinone) Stable Isotope Reagent CS-C-01599 934-85-0 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-adamantane-1-yl-o-quinone Building Blocks CS-O-48202 Not Available Enquire


Dyes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Dihydroxyanthraquinone Dyes CS-O-57973 1322-60-7 Enquire


Enzymes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Ubiquinone Q-12 Enzymes CS-O-15049 24663-36-3 In Stock


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Rifampicin Quinone Therapeutic CS-O-02228 13983-13-6 In Stock