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

Formoterol Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Arformoterol 13D3 Stable Isotopes CS-O-15663 67346-49-0 (Unlabeled) Enquire
Arformoterol D3 Stable Isotopes CS-O-15661 1198353-13-7 Enquire
Arformoterol tartrate D6 Stable Isotopes CS-O-15662 200815-49-2 (Unlabeled) Enquire
Formoterol D6 Stable Isotopes CS-O-47959 73573-87-2 (Unlabelled) Enquire
Formoterol d6 Tartarate Stable Isotopes CS-O-16446 67346-55-8 (Unlabeled) Enquire
Formoterol-13C-d3 Hemifumarate Stable Isotopes CS-EO-02530 Not Available Enquire
Formoterol-d6 Fumarate Stable Isotopes CS-T-95397 Not Available Enquire
Formoterol-d6 Fumarate Stable Isotopes CS-O-02939 43229-80-7 (Unlabeled) In Stock
Formoterol-D7 Stable Isotopes CS-EO-02531 Not Available Enquire
N-Deformyl Formoterol-d6 Fumarate (Mixture of Diastereomers... Stable Isotopes CS-T-97653 1795142-59-4 Enquire
N-Methyl Formoterol-d3 Fumarate (Mixture of Diastereomers) Stable Isotopes CS-T-97311 1795143-40-6 Enquire
rac-Formoterol-d6 Stable Isotopes CS-ZG-03046 1020719-45-2 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Arformoterol API Standards CS-O-00859 67346-49-0 In Stock
Arformoterol Tartrate API Standards CS-O-00839 200815-49-2 In Stock
Formoterol API Standards CS-T-24640 128954-45-0 Enquire
Formoterol Fumarate API Standards CS-O-01545 43229-80-7 Enquire
Formoterol fumarate dihydrate API Standards CS-O-01547 183814-30-4 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S,S)-Formoterol Impurities CS-P-07955 67346-48-9 Enquire
(S,S)-Formoterol D-Tartrate Impurities CS-T-74672 208102-43-6 Enquire
1-(4-(Benzyloxy)-3-nitrophenyl)-2-bromoethanone Impurities CS-T-06123 43229-01-2 In Stock
3-Methyl Arformoterol Impurities CS-O-56442 Not Available Enquire
Arformoterol Impurity 1 Impurities CS-EO-00609 Not Available Enquire
ARFORMOTEROL ISOPROPYL ETHER IMPURITY Impurities CS-O-44980 Not Available Enquire
Arformoterol Meta isomer Impurities CS-O-44700 1027563-89-8 Enquire
Arformoterol Related compound-G Impurities CS-O-44369 Not Available Enquire
Arformoterol Tartrate S isomer Impurities CS-O-44540 67346-54-7 Enquire
ARFORMOTEROL TARTRATE RELATED COMP A Impurities CS-O-44368 Not Available Enquire
Arformoterol Unknown Impurity at 0.97RRT Impurity Impurities CS-O-42955 Not Available Enquire
Deformyl Formoterol Citric acid adduct Impurities CS-O-43273 Not Available Enquire
Formoterol EP impurity A (Mixture of Diastereomers) Impurities CS-O-49473 652994-19-9 Enquire
Formoterol EP Impurity A Fumarate Impurities CS-EO-03577 150513-24-9 (Freebase) Enquire
Formoterol EP Impurity H Impurities CS-O-40908 2514947-17-0 Enquire
Formoterol Fumarate benzoxazol impurity Impurities CS-O-46225 Not Available Enquire
Formoterol Fumarate Dihydrate EP Impurity I (R,S-isomer) ((R... Impurities CS-P-07947 67346-51-4 Enquire
Formoterol Fumarate Dihydrate EP Impurity I (S,R-isomer) ((S... Impurities CS-P-07950 67346-50-3 Enquire
Formoterol Fumarate dihydrate Impurity Impurities CS-O-34145 477552-93-5 Enquire
Formoterol Fumarate EP Impurity A Impurities CS-O-14073 150513-24-9 In Stock
Formoterol Fumarate EP Impurity B Impurities CS-O-14074 1224588-66-2 In Stock
Formoterol Fumarate EP Impurity C Impurities CS-O-14075 Not Available Enquire
Formoterol Fumarate EP Impurity D Impurities CS-O-14076 1795133-96-8 In Stock
Formoterol Fumarate EP Impurity E Impurities CS-O-14077 1616967-26-0 Enquire
Formoterol Fumarate EP Impurity F Impurities CS-O-14078 1795129-59-7 Enquire
Formoterol Fumarate EP Impurity H Impurities CS-O-14080 Not Available Enquire
Formoterol Fumarate EP Impurity I Impurities CS-T-55025 532414-36-1 Enquire
Formoterol Imine Impurity Impurities CS-O-39310 Not Available Enquire
Formoterol Impurity 2 Impurities CS-EO-03576 43229-69-2 Enquire
Formoterol impurity 3 Impurities CS-O-56708 Not Available Enquire
Formoterol impurity B fumarate salt Impurities CS-DX-00011 1795137-04-0 Enquire
Formoterol impurity C fumarate salt Impurities CS-DX-00012 1795135-62-4 Enquire
Formoterol Impurity D Impurities CS-P-07945 1795133-96-8 Enquire
Formoterol impurity D fumarate salt Impurities CS-DX-00013 1795133-96-8 (Freebase) Enquire
Formoterol impurity E fumarate salt Impurities CS-DX-00014 1795136-92-3 Enquire
Formoterol impurity F fumarate salt Impurities CS-DX-00015 1795129-60-0 Enquire
Formoterol Impurity G Impurities CS-O-31109 Not Available In Stock
Formoterol Impurity G Hydrochloride Impurities CS-P-07951 3706-26-1 In Stock
Formoterol Related Compound C Impurities CS-O-35768 1795135-61-3 (free base) Enquire
Formoterol related compound I Impurities CS-EO-00568 Not Available Enquire
N-Benzyl Formoterol Impurities CS-T-95960 1337876-26-2 Enquire
N-Nitroso Formoterol Impurities CS-O-43417 Not Available Enquire
N-nitroso Formoterol Impurities CS-O-39089 Not Available In Stock
rac-O-Benzyl N-Phenyl Formoterol(Mixture of Diastereomers) Impurities CS-T-06112 43229-70-5 In Stock


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
rac Formoterol O-Sulfate Intermediates CS-T-24647 250336-08-4 Enquire


Glucuronides

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Formoterol-β-D-Glucuronide Glucuronides CS-T-54911 615551-59-2 Enquire
rac Formoterol 1'-O-β-D-Glucuronide Glucuronides CS-T-54912 250336-07-3 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-Diphenyl(pyrrolidin-2-yl)methanol Fine Chemicals CS-O-15225 112068-01-6 In Stock