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

Spiramycin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Neo Spiramycin I-d3 Stable Isotopes CS-T-96490 Not Available Enquire
Spiramycin I-d3 Stable Isotopes CS-O-15016 24916-50-5 (Unlabeled) Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Spiramycin API Standards CS-O-02371 8025-81-8 In Stock
Spiramycin I API Standards CS-T-61396 24916-50-5 Enquire


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Acetyl spiramycin Metabolites CS-O-05995 24916-51-6 In Stock
Neo Spiramycin I Metabolites CS-T-59225 70253-62-2 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"2-O-Acetyl-4-O-tert-butyldimethylsilylspiramycin I 3,18-(O-... Impurities CS-T-47155 96405-32-2 Enquire
Spiramycin EP Impurity D Impurities CS-EO-00398 Not Available Enquire
Spiramycin EP Impurity F Impurities CS-EO-00399 Not Available Enquire
Spiramycin EP Impurity H Impurities CS-EO-00400 4617-99-6 Enquire
Spiramycin III Impurities CS-T-61397 24916-52-7 In Stock
Spiramycin impurity B Impurities CS-P-08211 249930-66-3 Enquire
Spiramycin impurity C Impurities CS-P-08212 177584-13-3 Enquire
Spiramycin impurity E Impurities CS-P-08210 177584-14-4 Enquire
Spiramycin impurity G Impurities CS-P-08213 Not Available In Stock


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Spiramycin (S1100000) EP Standards CS-EG-00581 8025-81-8 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2'-O-Acetyl-4''-O-tert-butyldimethylsilyl-4'''-de-N-methylsp... Intermediates CS-ED-37260 96405-33-3 Enquire
2-O-Acetylspiramycin I Intermediates CS-T-47383 89000-32-8 Enquire
4,17-Dioxabicyclo[12.3.2]nonadecane-18-O-tert-butyldimethyls... Intermediates CS-T-53777 93512-87-9 Enquire
Spiramycin Adipate Intermediates CS-T-84959 68880-55-7 In Stock
Spiramycin Embonate Intermediates CS-T-85554 67724-08-7 Enquire