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Ergocalciferol is a form of vitamin D2 used to treat vitamin D deficiency and related conditions such as rickets and osteomalacia. It promotes calcium absorption in the intestines and helps regulate bone health.
Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Ergocalciferol and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Ergocalciferol 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 Ergocalciferol-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.

Ergocalciferol
CAT No: CL-EGCF-01 CAS No: 50-14-6 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (3S,5Z,7E,22E)-9,10-Secoergosta-5,7,10(19),22-tetraen-3-ol.
3-epi-25-Hydroxyvitamin D3
CAT No: CL-EGCF-02 CAS No: 73809-05-9 Mol Wt: 400.6 Mol F: C27H44O2 Inv Status: Custom Synthesis
Chemical Name: (R,Z)-3-(2-((1R,3aS,7aR,E)-1-((R)-6-hydroxy-6-methylheptan-2-yl)-7a-methyloctahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexan-1-ol
Ergocalciferol EP Impurity A
CAT No: CL-EGCF-03 CAS No: 51744-66-2 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (3S,5E,7E,22E)-9,10-secoergosta-5,7,10(19),22-tetraen-3-ol
Ergocalciferol EP Impurity D
CAT No: CL-EGCF-06 CAS No: 469-06-7 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (3S,6E,22E)-9,10-Secoergosta-5(10),6,8(14),22-tetraen-3-ol
Ergocalciferol EP Impurity B
CAT No: CL-EGCF-07 CAS No: 57-87-4 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (22E)-Ergosta-5,7,22-trien-3?-ol
Ergocalciferol EP Impurity C
CAT No: CL-EGCF-08 CAS No: 474-69-1 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (22E)-9?,10?-Ergosta-5,7,22-trien-3?-ol
Ergocalciferol EP Impurity E
CAT No: CL-EGCF-09 CAS No: 115-61-7 Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (3S,6E,22E)-9,10-Secoergosta-5(10),6,8,22-tetraen-3-ol
Ergocalciferol EP Impurity F
CAT No: CL-EGCF-10 CAS No: NA Mol Wt: 394.6 Mol F: C28H42O Inv Status: Custom Synthesis
Chemical Name: (3S,5Z,7E,22E)-9,10-Secoergosta-5,7,10(19),22,24(241)-pentaen-3-ol
Ergocalciferol EP Impurity G
CAT No: CL-EGCF-11 CAS No: 511-28-4 Mol Wt: 398.7 Mol F: C28H46O Inv Status: Custom Synthesis
Chemical Name: (3S,5Z,7E)-9,10-Secoergosta-5,7,10(19)-trien-3-ol
Ergocalciferol Impurity 1
CAT No: CL-EGCF-12 CAS No: NA Mol Wt: 396.7 Mol F: C28H44O Inv Status: Custom Synthesis
Chemical Name: (Z)-3-(2-((E)-7a-methyl-1-(6-methyl-5-methyleneheptan-2-yl)octahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexan-1-ol
Ergocalciferol D3
CAT No: CL-EGCF-13 CAS No: 1217448-46-8 Mol Wt: 399.7 Mol F: C28H41D3O Inv Status: Custom Synthesis
Chemical Name: (S,Z)-3-(2-((1R,3aS,7aR,E)-1-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-7a-methyloctahydro-4H-inden-4-ylidene)ethylidene-1-d)-4-(methylene-d2)cyclohexan-1-ol
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