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A macrolide antibiotic effective against certain Gram-positive bacteria and protozoa. It is often used in toxoplasmosis, especially during pregnancy. It interferes with bacterial protein synthesis.
Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Spiramycin and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Spiramycin impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Spiramycin-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

CAT No: CL-SPMY-01
CAS No: 68880-55-7
Mol Wt: 843.1 : 146.1
Mol F: C43H74N2O14 : C6H10O4
Inv Status:Custom Synthesis
CAT No: CL-SPMY-02
CAS No: 70253-62-2
Mol Wt: 698.9
Mol F: C36H62N2O11
Inv Status:Custom Synthesis
CAT No: CL-SPMY-03
CAS No: 249930-66-3
Mol Wt: 845.1
Mol F: C43H76N2O14
Inv Status:Custom Synthesis
CAT No: CL-SPMY-04
CAS No: 177584-13-3
Mol Wt: 855.1
Mol F: C44H74N2O14
Inv Status:Custom Synthesis
CAT No: CL-SPMY-05
CAS No: NA
Mol Wt: 846
Mol F: C42H71NO16
Inv Status:Custom Synthesis
CAT No: CL-SPMY-06
CAS No: 177584-14-4
Mol Wt: 829.1
Mol F: C43H76N2O13
Inv Status:Custom Synthesis
CAT No: CL-SPMY-07
CAS No: NA
Mol Wt: 1622
Mol F: C84H140N4O26
Inv Status:Custom Synthesis
CAT No: CL-SPMY-08
CAS No: NA
Mol Wt: 740.9
Mol F: C38H64N2O12
Inv Status:Custom Synthesis
CAT No: CL-SPMY-09
CAS No: 4617-99-6
Mol Wt: 755
Mol F: C39H66N2O12
Inv Status:Custom Synthesis
CAT No: CL-SPMY-10
CAS No: 24916-50-5
Mol Wt: 843.1
Mol F: C43H74N2O14
Inv Status:Custom Synthesis
CAT No: CL-SPMY-11
CAS No: 24916-52-7
Mol Wt: 899.1
Mol F: C46H78N2O15
Inv Status:Custom Synthesis
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