Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for 4-hydroxybenzoic Acid, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our 4-hydroxybenzoic 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 4-hydroxybenzoic 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 4-hydroxybenzoic 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.
4-hydroxybenzoic Acid Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-hydroxybenzoic acid-D2 | Stable Isotopes | CS-O-40665 | 91203-82-6 | Enquire |
| [Carboxy-13C]-4-Hydroxybenzoic acid | Stable Isotopes | CS-EK-02104 | 146672-02-8 | Enquire |
| [U-Ring-¹³C₆]-4-Hydroxybenzoic acid | Stable Isotopes | CS-EK-00292 | 287399-29-5 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2,3-Difluoro-4-hydroxybenzoic acid | Impurity | CS-DL-00819 | 175968-39-5 | Enquire |
| 2,6-Difluoro-4-hydroxybenzoic Acid | Impurity | CS-T-52894 | 214917-68-7 | Enquire |
| 3-Chloro-4-hydroxybenzoic acid | Impurity | CS-CG-00148 | 3964-58-7 | Enquire |
| 4-hydroxybenzoic acid benzyl ester | Impurity | CS-DV-02822 | 94-18-8 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Acetamido-4-hydroxybenzoic acid | Intermediate | CS-O-52665 | 99358-07-3 | Enquire |
| 3,5-Di-tert-butyl-4-hydroxybenzoic acid | Intermediate | CS-AC-08621 | 1421-49-4 | In Stock |
| 3-tert-Butyl-4-hydroxybenzoic acid | Intermediate | CS-T-94280 | 66737-88-0 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Amino-4-hydroxybenzoic acid | Fine Chemicals | CS-M-03597 | 1571-72-8 | In Stock |
| 2-amino-3-chloro-4-hydroxybenzoic acid | Fine Chemicals | CS-O-36617 | 2167666-47-7 | Enquire |
| 2-Bromo-4-hydroxybenzoic acid | Fine Chemicals | CS-ZH-16705 | 28547-28-6 | Enquire |
| 3,5-dicyano-4-hydroxybenzoic acid | Fine Chemicals | CS-O-37413 | Not Available | Enquire |
| 3-Carbamoyl-4-hydroxybenzoic acid | Fine Chemicals | CS-ED-02062 | 76142-87-5 | Enquire |
| 3-chloro-5-cyano-4-hydroxybenzoic acid | Fine Chemicals | CS-O-37412 | 1807008-93-0 | Enquire |
| 3-cyano-5-fluoro-4-hydroxybenzoic acid | Fine Chemicals | CS-O-37411 | 1804875-95-3 | Enquire |
| 3-Fluoro-4-hydroxybenzoic acid | Fine Chemicals | CS-M-00965 | 350-29-8 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3,5-Dinitro-4-hydroxybenzoic Acid | Nitrosamine | CS-DV-02048 | 1019-52-9 | In Stock |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Hydroxybenzoic acid | Secondary Standards | CS-SS-24104-1GM | 99-96-7 | Enquire |
Stable Isotope Reagent
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3,5-Dimethoxy-d6-4-hydroxybenzoic Acid | Stable Isotope Reagent | CS-C-00379 | 84759-06-8 | Enquire |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-(tert-Butyl)-5-formyl-4-hydroxybenzoic Acid | Building Blocks | CS-DJ-00931 | 882500-52-9 | Enquire |
Deuterated Reagents
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Hydroxybenzoic Acid-d4 | Deuterated Reagents | CS-T-55766 | 152404-47-2 | In Stock |