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

Phthalazine Related Compounds

Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(E)-4-(phthalazin-1-yldiazenyl)-1,1'-biphthalazine Impurity CS-O-47133 Not Available Enquire
2H-[1,2,3]triazolo[4,5-f]phthalazine Impurity CS-O-47406 Not Available Enquire
3-Methyl-1,2,4-triazolo[3,4-a]phthalazine Impurity CS-T-35232 20062-41-3 In Stock
1,4-Dichloro-6,7-dimethoxyphthalazine Impurity CS-T-52616 99161-51-0 Enquire
1-Chloro-4-methyl-phthalazine Impurity CS-M-08800 19064-68-7 Enquire
5-Amino-2,3-dimethyl-2,3-dihydrophthalazine-1,4-dione Impurity CS-M-49452 873967-42-1 Enquire
5-Bromo-phthalazine Impurity CS-DV-03073 103119-78-4 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,7-dichlorophthalazine Intermediate CS-O-52349 873967-47-6 Enquire
1′H-1,2′-Biphthalazinyl-1′-one Intermediate CS-EO-03995 7134-95-4 Enquire
1-Aminophthalazine Intermediate CS-T-03317 19064-69-8 In Stock
2-Aminophthalazin-1(2H)-one Intermediate CS-EO-03993 2832741-84-9 Enquire
2-Methylphthalazin-1(2H)-one Intermediate CS-EO-03994 6091-81-2 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,4-Dichlorophthalazine Fine Chemicals CS-MM-44466 4752-10-7 In Stock
Phthalazine Fine Chemicals CS-T-39863 253-52-1 In Stock
5-Aminophthalazine Fine Chemicals CS-M-54548 102072-84-4 Enquire