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

Benzoxazine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(3S)-10-(4-Ethyl-1-piperazinyl)-9-fluoro-2,3-dihydro-3-methy... Stable Isotopes CS-T-97514 Not Available Enquire
(4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(triflu... Stable Isotopes CS-T-101709 Not Available Enquire
5H-Pyrido[1,2,3-de]-1,4-benzoxazine-D3 Boron Derivative Stable Isotopes CS-T-102610 87531-64-4(Unlabelled) Enquire
6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-car... Stable Isotopes CS-T-72185 1329634-37-8 Enquire
6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-car... Stable Isotopes CS-T-72126 1795029-57-0 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2H-1,3-Benzoxazine-2,4(3H)-dione Impurity CS-CG-00145 2037-95-8 In Stock
7-Chloro-2H-3,1-benzoxazine-2,4(1H)-dione Impurity CS-M-28127 40928-13-0 In Stock
(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de... Impurity CS-T-54826 117620-84-5 Enquire
(4S)-6-Chloro-4-(2-cyclopropylethynyl)-1,4-dihydro-4-(triflu... Impurity CS-T-50688 119047-14-2 Enquire
2-Methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic a... Impurity CS-M-30855 154365-40-9 Enquire
3,4-Dihydro-2H-1,4-benzoxazine Impurity CS-DL-00967 5735-53-5 Enquire
6,7-Dimethoxy-2H-3,1-benzoxazine-2,4(1H)-dione Impurity CS-M-28122 20197-92-6 Enquire
6,8-Dimethyl-2H-3,1-benzoxazine-2,4(1H)-dione Impurity CS-M-26959 56934-87-3 Enquire
6-Chloro-3,4-dihydro-3-oxo-2H-1,4-benzoxazine-8-carboxylic A... Impurity CS-T-50638 123040-75-5 Enquire
6-chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxazine-8-car... Impurity CS-O-32408 123040-79-9 Enquire
6-Iodo-2H-3,1-benzoxazine-2,4(1H)-dione Impurity CS-M-28123 116027-10-2 Enquire
8-Methyl-2H-3,1-benzoxazine-2,4(1H)-dione Impurity CS-M-26958 66176-17-8 Enquire
9-Bromo-10-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3... Impurity CS-O-40287 1369498-86-1 Enquire
Ethyl 2-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carbox... Impurity CS-M-30854 154365-33-0 Enquire
Ethyl 2-methyl-6-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-... Impurity CS-M-33642 154365-37-4 Enquire
Ethyl 2-methyl-7-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-... Impurity CS-M-33643 154365-36-3 Enquire
Ethyl 4-methyl-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate Impurity CS-M-33566 54442-28-3 Enquire
Ethyl 6-chloro-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate Impurity CS-M-32426 68281-43-6 Enquire
Methyl 4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carbo... Impurity CS-M-34563 201294-27-1 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]... Intermediate CS-T-91150 82419-35-0 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Alanine Benzyl Ester Hydrochloride Fine Chemicals CS-O-11255 5557-83-5 In Stock
1,2,3,3a-Tetrahydro-5H-pyrrolo[1,2-a][3,1]benzoxazine Fine Chemicals CS-O-36429 87067-06-9 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(tert-Butyl)-3,4-dihydro-2H-1,4-benzoxazine Building Blocks CS-M-31894 32278-16-3 Enquire