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

Citric Acid Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Methylcitric Acid-d3 Stable Isotopes CS-T-79926 146764-58-1 Enquire
Citric acid-2,4-13C2 Stable Isotopes CS-T-72853 121633-50-9 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cis-Aconitic acid API CS-E-00016 585-84-2 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Aminocaproic Acid Citric Acid Adduct Impurity CS-O-37195 ---- In Stock
Calcium (-)-Hydroxycitrate Impurity CS-T-50209 921226-01-9 In Stock
Citric acid Aminocaproic acid adduct Impurity CS-O-46991 Not Available Enquire
Dapagliflozin Citric Acid (mixture of isomers) Impurity CS-O-58982 Not Available In Stock
Deformyl Formoterol Citric acid adduct Impurity CS-O-43273 Not Available Enquire
OSELTAMIVIR CITRIC ACID ADDUCT Impurity CS-T-93528 Not Available In Stock
OSELTAMIVIR CITRIC ACID ADDUCT II Impurity CS-O-45307 Not Available Enquire
Oxolamine Citric Acid Impurity CS-O-30712 1949-20-8 In Stock
Trisodium Isocitric Acid (Mixture of Isomers) Impurity CS-T-45888 1637-73-6 In Stock
(-)-Hydroxycitric acid Calcium salt Impurity CS-E-00926 Not Available Enquire
(+)-Hydroxycitric acid lactone Impurity CS-E-00927 27750-13-6 Enquire
Citric Acid (3-Methanethiosulfonate Ethyl Amide) Impurity CS-T-72249 1797099-42-3 Enquire
OSELTAMIVIR CITRIC ACID ADDUCT 2 Impurity CS-O-34386 Not Available Enquire
Palbociclib Citric acid adduct Impurity CS-O-38015 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Hydroxycitric Acid TriPotassium Salt Monohydrate Intermediate CS-T-55781 232281-44-6 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Citric Acid Fine Chemicals CS-T-51162 77-92-9 In Stock
Citric acid monohydrate Fine Chemicals CS-O-05633 5949-29-1 In Stock
Sodium Ferrous Citrate Fine Chemicals CS-O-57789 50717-86-7 Enquire
Hydroxycitric acid Fine Chemicals CS-ZG-97784 6205-14-7 Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Citric acid Monohydrate Secondary Standards CS-SS-25645-200MG 5949-29-1 Enquire
Citric acid, Anhydrous Secondary Standards CS-SS-24121-1GM 77-92-9 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Citric acid-2,2,4,4-d4 Stable Isotope Reagent CS-O-03111 147664-83-3 In Stock
Isocitric Acid-13C4 Stable Isotope Reagent CS-T-103709 320-77-4(unlabelled) Enquire
Citric Acid-13C6 Stable Isotope Reagent CS-T-95679 287389-42-8 Enquire


Biochemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Citric Acid Anhydrous for tissue culture, 99% Biochemicals CS-SR-00054 77-92-9 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Methylcitric Acid Building Blocks CS-O-10343 6061-96-7 In Stock
2-[2-[(5-carboxypentyl)amino]-2-oxoethyl]-2-hydroxybutanedio... Building Blocks CS-TA-87164 1675217-42-1 Enquire