Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Phthalic Acid, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Phthalic Acid 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 Phthalic Acid-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.
Our Phthalic Acid-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.
Phthalic Acid Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Methylcyclohexylphthalic Acid Ester-d4 | Stable Isotopes | CS-T-98038 | Not Available | Enquire |
| 2,2-Dimethylcyclohexylphthalic Acid Ester-d4 | Stable Isotopes | CS-T-98180 | Not Available | Enquire |
| Phthalic Acid (Phenyl-13C6, D4) | Stable Isotopes | CS-T-97913 | 88-99-3 (Unlabelled) | Enquire |
| Phthalic Acid 1-(1,2-dimethylpropyl) Ester-d4 | Stable Isotopes | CS-T-97911 | Not Available | Enquire |
| Phthalic Acid Bis(1,2-dimethylpropyl) Ester-d4 | Stable Isotopes | CS-T-97909 | Not Available | Enquire |
| Phthalic Acid Cyclohexyl Isobutyl Ester-d4 | Stable Isotopes | CS-T-97908 | Not Available | Enquire |
| Phthalic Acid-d4 1-Ethylpropyl Ester | Stable Isotopes | CS-T-97910 | Not Available | Enquire |
| Phthalic Acid-d4 Mono-tetrahydrogeranyl Ester | Stable Isotopes | CS-T-97907 | Not Available | Enquire |
| Tetrabromophthalic Acid-13C6 | Stable Isotopes | CS-T-97889 | Not Available | Enquire |
| Phthalic Acid Anhydride-13C2 | Stable Isotopes | CS-T-84307 | 1239918-30-9 | Enquire |
| Phthalic Acid Bis(3,7-dimethyloctyl) Ester-d4 | Stable Isotopes | CS-T-84050 | 1398065-81-0 | Enquire |
| Phthalic Acid-13C2 | Stable Isotopes | CS-T-84166 | 254110-94-6 | Enquire |
| Terephthalic Acid-13C8 | Stable Isotopes | CS-T-87075 | 1794767-08-0 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Terephthalic Acid | API | CS-T-43341 | 100-21-0 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Nitrophthalic Acid | Impurity | CS-T-59602 | 603-11-2 | In Stock |
| Phthalic Acid | Impurity | CS-T-39867 | 88-99-3 | In Stock |
| 2,4,5,6-Tetrafluoroisophthalic acid | Impurity | CS-M-26232 | 1551-39-9 | Enquire |
| 2,6-Dichloroterephthalic Acid | Impurity | CS-T-17797 | 116802-97-2 | Enquire |
| 3-(hydroxyamino)phthalic acid | Impurity | CS-O-39597 | 202262-76-8 | Enquire |
| 3-Methoxyphthalic Acid | Impurity | CS-T-32840 | 14963-97-4 | Enquire |
| 4-Acetoxyisophthalic Acid | Impurity | CS-T-01224 | 5985-26-2 | Enquire |
| 4-Chloroisophthalic acid | Impurity | CS-M-26632 | 2845-85-4 | Enquire |
| Phthalic Acid 4,5-cis-Dihydrodiol | Impurity | CS-T-84762 | 130073-64-2 | Enquire |
| Phthalic Acid Cyclohexyl Isobutyl Ester | Impurity | CS-T-60555 | Not Available | Enquire |
| Terephthalic acid monoamide | Impurity | CS-M-07499 | 6051-43-0 | Enquire |
| Tetrachlorophthalic acid | Impurity | CS-DL-00969 | 632-58-6 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Aminophthalic Acid Hydrochloride | Intermediate | CS-BX-00460 | 6946-22-1 | In Stock |
| 3-Aminophthalic Acid Hydrochloride Dihydrate | Intermediate | CS-ED-08160 | 1852533-96-0 | In Stock |
| Isophthalic Acid | Intermediate | CS-EP-00273 | 121-91-5 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Terephthalic acid, cyclic ethylene oxydiethylene ester | Fine Chemicals | CS-O-58760 | 29278-57-7 | Enquire |
| 2,5-Bis(trifluoromethyl)terephthalic acid | Fine Chemicals | CS-ZB-28705 | 366008-67-5 | Enquire |
| 2-Aminoisophthalic acid | Fine Chemicals | CS-M-03247 | 39622-79-2 | Enquire |
| 2-Chloroisophthalic acid | Fine Chemicals | CS-MM-55939 | 13049-16-6 | Enquire |
| 3-Fluorophthalic acid | Fine Chemicals | CS-M-01762 | 1583-67-1 | Enquire |
| 4,5-Dichlorophthalic acid | Fine Chemicals | CS-BX-00770 | 56962-08-4 | Enquire |
| 4,5-Difluorophthalic acid | Fine Chemicals | CS-MM-26870 | 18959-31-4 | Enquire |
| Phthalic acid butyl heptyl-4-yl-ester | Fine Chemicals | CS-O-37046 | Not Available | Enquire |
| Phthalic acid di(hept-3-yl) ester | Fine Chemicals | CS-O-36659 | 2177305-25-6 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Hydroxyphthalic acid | Building Blocks | CS-M-58419 | 610-35-5 | In Stock |
| 4-Methylphthalic Acid | Building Blocks | CS-O-52618 | 4316-23-8 | Enquire |
| Hexahydrophthalic acid | Building Blocks | CS-T-95908 | 1687-30-5 | Enquire |
| 3,4-dinitrophthalic acid | Building Blocks | CS-O-45091 | 92971-15-8 | Enquire |
| 3,5-dinitrophthalic acid | Building Blocks | CS-O-45096 | 4277-02-5 | Enquire |
| 3,6-dinitrophthalic acid | Building Blocks | CS-O-45098 | 2300-16-5 | Enquire |
| 3-Chlorophthalic acid | Building Blocks | CS-ZG-95036 | 27563-65-1 | Enquire |
| 4-(Trifluoromethyl)phthalic acid | Building Blocks | CS-M-02453 | 835-58-5 | Enquire |
| 4,5-dinitrophthalic acid | Building Blocks | CS-O-45094 | 90348-28-0 | Enquire |
| 4-Phenoxyphthalic acid | Building Blocks | CS-ED-01236 | 37951-15-8 | Enquire |
| 5-Chloroisophthalic Acid | Building Blocks | CS-T-93985 | 2157-39-3 | Enquire |
Pesticide Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2,3,5,6-Tetrachloroterephthalic Acid | Pesticide Standards | CS-T-87274 | 2136-79-0 | Enquire |
Reagents
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 5-Sulfoisophthalic acid | Reagents | CS-O-58153 | 22326-31-4 | Enquire |
Stable Isotope Reagent
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Phthalic acid-d4 | Stable Isotope Reagent | CS-T-60554 | 87976-26-9 | In Stock |