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

Dioxin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1R,2R)-2-(N-1,2,3,4-13C4-Octanoyl)-amino-1-(2,3-dihydrobenz... Stable Isotopes CS-T-97249 Not Available Enquire
(1R,2R)-2-(N-Octanoyl-d15)-amino-1-(2,3-dihydrobenzo[b][1,4]... Stable Isotopes CS-T-97248 Not Available Enquire
(1R,2R)-2-(N-Octanoyl-d15)-amino-1-(2,3-dihydrobenzo[b][1,4]... Stable Isotopes CS-T-97247 Not Available Enquire
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin-13C12 Stable Isotopes CS-O-58532 109719-80-4 Enquire
2,3,7,8-Tetrachlorodibenzo-p-dioxin-37Cl4 Stable Isotopes CS-O-58530 85508-50-5 Enquire
2,3,7,8-Tetrachloro-p-dioxin-13C12 Stable Isotopes CS-EO-02421 76523-40-5 Enquire
2,3-dihydro-8-(boronic acid)-1,4-Dioxino[2,3-b]pyridine-d4 Stable Isotopes CS-T-96434 Not Available Enquire
5-Hydroxy-7-methoxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-on... Stable Isotopes CS-T-102547 532394-23-3(Unlabelled) Enquire
7-Methoxy-5-(methoxymethoxy)-2,2-dimethyl-4H-1,3-benzodioxin... Stable Isotopes CS-T-102420 Not Available Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4aS,7S,8S)-3-hydroxy-4,7-dimethyl-8-(3-oxobutyl)octahydrobe... Impurity CS-O-54208 ---- Enquire
(R)-2-((6-(2-((2,6-Dichlorobenzyl)oxy)ethoxy)hexyl)amino)-1-... Impurity CS-O-44238 Not Available Enquire
(R)-4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)methyl)-5-phenyl... Impurity CS-O-59268 ---- Enquire
(S)-5-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)oxazolidin-2... Impurity CS-O-49676 2514942-86-8 Enquire
1-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-3-(pyrrolidin-1-yl)p... Impurity CS-O-59265 ---- Enquire
2,7-Dibenzodichloro-p-Dioxin Impurity CS-O-56988 33857-26-0 Enquire
(1aS,1bR,5aS,6aS)-Hexahydro-3-(4-methoxyphenyl)-oxireno[4,5]... Impurity CS-T-55600 905580-85-0 Enquire
(1R,2R)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-(((S)- 2-h... Impurity CS-O-33533 491833-27-3 Enquire
(1R,2R)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-octanamido... Impurity CS-O-33535 2193052-06-9 Enquire
(2S,3S,4aR,8aR)-2,3,4a,8a-Tetrahydro-2,3-dimethoxy-2,3-dimet... Impurity CS-T-61835 286936-09-2 Enquire
(2S,3S,4aR,8aR)-2,3,4a,8a-Tetrahydro-7-iodo-2,3-dimethoxy-2,... Impurity CS-T-61836 334700-48-0 Enquire
(2S,3S,4aR,8R,8aR)-Hexahydro-8-hydroxy-2,3-dimethoxy-2,3-dim... Impurity CS-T-55612 286936-08-1 Enquire
(3S,4R,4AS,7R,8S,8AR)-3-HYDROXY-4,7-DIMETHYL-8-(3-OXOBUTYL)O... Impurity CS-O-42008 1812179-50-2 Enquire
(5R)-3-[6-[2-[(2,6-dichlorophenyl)methoxy]ethoxy]hexyl]-5-(2... Impurity CS-ED-02231 503068-36-8 Enquire
(R)-tert-butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)... Impurity CS-ED-02227 452339-72-9 Enquire
(S)-tert-butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)... Impurity CS-O-41331 2724154-01-0 Enquire
[(2,3-Dihydro-benzo[1,4]dioxin-2-ylmethyl)-amino]-acetic aci... Impurity CS-M-04084 1052527-52-2 Enquire
[(2,3-Dihydro-benzo[1,4]dioxine-6-sulfonyl)-methyl-amino]-ac... Impurity CS-M-04124 425659-61-6 Enquire
[1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-ethyl]-methyl-amine h... Impurity CS-M-06939 473801-85-3 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-2,5-dimethyl-1H-pyrrol... Impurity CS-M-09981 878427-40-8 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-5-oxo-pyrrolidine-3-ca... Impurity CS-M-22575 260555-42-8 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-butylaminehydrochlorid... Impurity CS-M-08485 1092797-60-8 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-ethylamine hydrochlori... Impurity CS-M-07037 1092797-55-1 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-piperazine Impurity CS-M-07625 148245-18-5 Enquire
1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-propylamine Impurity CS-M-07652 654683-88-2 Enquire
1-(7-Amino-2,3-dihydro-benzo[1,4]dioxin-6-yl)-ethanone Impurity CS-M-09358 164526-13-0 Enquire
1,3,7-Trichlorodibenzo-p-dioxin Impurity CS-ED-02100 67028-17-5 Enquire
2-(6,7-dibromo-2-methoxy-2,3-dihydrobenzo[b][1,4]dioxin-2-yl... Impurity CS-O-38231 Not Available Enquire
2,2,8-Trimethyl-4H-1,3-dioxino[4,5-c]pyridine-5-carboxylic A... Impurity CS-T-62451 82896-36-4 Enquire
2,3-Dihydro-1,4-benzodioxine-5,6-diaminedihydrochloride Impurity CS-M-47810 81927-47-1 Enquire
2,3-Dihydro-benzo[1,4]dioxine-2-carboxylic acidmethyl ester Impurity CS-M-21624 3663-79-4 Enquire
2,7-Dichlorodibenzo-p-dioxin Impurity CS-TB-19171 Not Available Enquire
2,8-Dichlorodibenzo-P-dioxin Impurity CS-ZG-27225 38964-22-6 Enquire
2-[(2,3-Dihydro-benzo[1,4]dioxine-6-carbonyl)-amino]-butyric... Impurity CS-M-04494 436855-75-3 Enquire
2-chloro-1-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)ethanon... Impurity CS-O-40408 Not Available Enquire
2-Chloro-N-(2,3-dihydro-1,4-benzodioxin-6-yl)acetamide Impurity CS-M-07162 42477-07-6 Enquire
2-Chloro-N-(2,3-dihydro-benzo[1,4]dioxin-2-yl-methyl)-acetam... Impurity CS-M-07624 119750-12-8 Enquire
2-Cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-acetamide Impurity CS-M-28012 545347-56-6 Enquire
3-(2,3-Dihydro-benzo[1,4]dioxine-6-sulfonyl)-propionic acid Impurity CS-M-22814 881044-58-2 Enquire
3-[(8-Chloro-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]azetidi... Impurity CS-T-50659 937624-75-4 Enquire
4-((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)thio)-2-(piperidin-1... Impurity CS-O-38780 732291-01-9 Enquire
4-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4H-1,2,4-triazole-3-thi... Impurity CS-CE-00298 959575-58-7 Enquire
4-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-4-oxo-butyric acid Impurity CS-M-07438 54557-81-2 Enquire
4-(2,3-Dihydro-benzo[1,4]dioxine-6-sulfonylamino)-butyric ac... Impurity CS-M-04126 300571-94-2 Enquire
4-[4-(2,3-Dihydro-1,4-benzodioxin-6-yl)-5-(2-pyridinyl)-1H-i... Impurity CS-T-52985 301836-43-1 Enquire
5-(2,3-Dihydro-1,4-benzodioxin-6-ylamino)-5-oxopentanoic aci... Impurity CS-M-06781 329043-16-5 Enquire
5-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-2H-pyrazole-3-carboxyl... Impurity CS-M-03831 299936-54-2 Enquire
5-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-thiophene-2-carboxylic... Impurity CS-M-10496 790681-94-6 Enquire
5,7-Dihydroxy-2,2-dimethyl-4H-1,3-benzodioxin-4-one Impurity CS-T-52952 137571-73-4 Enquire
5H-1,4-Dioxino[2,3-c]pyrrole, hexahydro-, hydrochloride (1:1... Impurity CS-EM-03322 694439-04-8 Enquire
6-(2,3-Dihydro-benzo[1,4]dioxine-6-sulfonylamino)-hexanoic a... Impurity CS-M-05467 304694-75-5 Enquire
6-Hydrazinyl-2,3-dihydro-1,4-benzodioxine Hydrochloride Impurity CS-DJ-01172 84139-00-4 Enquire
7-Methoxy-2,3-dihydro-benzo[1,4]dioxine-6-carbaldehyde Impurity CS-M-10830 116757-66-5 Enquire
Heptachlorodibenzo-p-dioxin Impurity CS-T-25907 35822-46-9 Enquire
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4-(4-methyl-1,1-dioxido... Impurity CS-T-52984 1011702-84-3 Enquire
N-(3-chloro-4-fluorophenyl)-7-((4-methylpiperazin-1-yl)methy... Impurity CS-O-38773 Not Available Enquire
N-Descarbo(1,4-benzodioxine), N-Acetyl Doxazosin Hydrochlori... Impurity CS-T-73753 222832-30-6 Enquire
Octachlorodibenzo-p-dioxin Impurity CS-T-37731 3268-87-9 Enquire
S-(-)-6,6-Bis(diphenylphosphino)-2,2,3,3-tetrahydro-5,5-bi-1... Impurity CS-DC-00478 503538-68-9 Enquire
tert-Butyl (2,3-dihydro-[1,4]dioxino-[2,3-b]pyridin-7-yl)car... Impurity CS-M-43794 1261365-75-6 Enquire
tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoeth... Impurity CS-ED-02228 452339-71-8 Enquire
Trifluoromethanesulfonic Acid 7-Methoxy-2,2-dimethyl-4-oxo-4... Impurity CS-T-62352 532394-17-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,2,6-Trimethyl-4H-1,3-dioxin-4-one Intermediate CS-T-62461 5394-63-8 In Stock
2,3-Dihydro-1,4-dioxine Intermediate CS-DE-01722 543-75-9 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-2-Amino-1-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)etha... Fine Chemicals CS-O-60085 208925-08-0 Enquire
(1R,2S)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-((2-((2-hy... Fine Chemicals CS-O-33670 Not Available Enquire
(2S)-3-(2,3-Dihydro-1,4-benzodioxin-6-yl)-3-hydroxy-2-[(2-hy... Fine Chemicals CS-ZH-28305 491833-26-2 Enquire
1,4-Dioxin Fine Chemicals CS-O-41641 290-67-5 Enquire
3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-7-(((2S,3R,4S,5S,6R)... Fine Chemicals CS-O-36089 301204-58-0 Enquire
5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-on... Fine Chemicals CS-O-39542 452340-96-4 Enquire
N-(2-Pyridinyl)-2,3-Dihydro-1,4-Benzodioxine-6-Sulfonamide Fine Chemicals CS-RS-00034 302584-09-4 Enquire
N-(3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-3-oxoprop-1-en-2-... Fine Chemicals CS-O-33672 Not Available Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(Chloromethyl)-2,3-dihydrothieno[3,4-b]-1,4-dioxin Building Blocks CS-O-47621 857419-46-6 Enquire