

1,2,3,9-Tetrahydro-4H-carbazol-4-one (CAS 15128-52-6) serves as a fundamental building block in the API intermediates market, particularly for the synthesis of the 5-HT3 receptor antagonist Ondansetron and other anti-emetic medications. As a leading bulk chemical supplier, we recognize that CDMOs are increasingly integrating this high-purity fine chemical (Pharma/API purity 99% | General Industry purity 98%) into multi-step Fischer indole synthesis protocols to optimize yield and minimize nitro-aromatic impurities. 1,2,3,4-Tetrahydro-4-oxocarbazole (CAS 15128-52-6) is witnessing a strategic global sourcing shift as manufacturers move toward onshoring production to ensure regulatory compliance and supply chain resilience against geopolitical disruptions. This trend has fueled the demand for custom synthesis services that provide robust analytical validation and comprehensive impurity profiling to meet the rigorous quality standards required for oncological supportive care. 2,3-Dihydro-1H-carbazol-4(9H)-one (CAS 15128-52-6) remains a critical precursor in medicinal chemistry for developing novel fused heterocyclic scaffolds, where maintaining precise crystalline morphology is essential for consistent downstream reactivity and batch-to-batch stability. By utilizing optimized cyclization techniques to deliver high-purity fine chemicals (Pharma/API purity 99% | General Industry purity 98%), suppliers can facilitate the rapid scale-up of complex APIs while adhering to international GMP guidelines and environmental safety mandates. We are an established global intermediates supplier with >= 99% purity, ensuring minimal carry-over of impurities in the final API, and offer a broad range of pharmaceutical intermediates for API manufacturers and finished formulators. We provide comprehensive analytical support (HPLC/NMR/MS), 2,3-dihydro-1H-carbazol-4(9H)-one COA/TDS/SDS, region-specific regulatory support, reliable lead times, and worldwide supply chain capabilities.

1,2,3,9-Tetrahydro-4H-carbazol-4-one (CAS 15128-52-6) serves as a fundamental building block in the API intermediates market, particularly for the synthesis of the 5-HT3 receptor antagonist Ondansetron and other anti-emetic medications. As a leading bulk chemical supplier, we recognize that CDMOs are increasingly integrating this high-purity fine chemical (Pharma/API purity 99% | General Industry purity 98%) into multi-step Fischer indole synthesis protocols to optimize yield and minimize nitro-aromatic impurities. 1,2,3,4-Tetrahydro-4-oxocarbazole (CAS 15128-52-6) is witnessing a strategic global sourcing shift as manufacturers move toward onshoring production to ensure regulatory complianc...

Chemical Properties & Specifications
P261, P264, P264+P265, P270, P271, P272, P280, P301+P316, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501
Acute Tox. 3 (25%)
Acute Tox. 4 (25%)
A vital pharmaceutical intermediate primarily used in the synthesis of antiemetic drugs such as Ondansetron, which targets the central nervous system
An analytical reference standard used for method development, validation, and quality control during the synthesis and formulation stages of drug development
A functionalized heterocyclic ketone used as a versatile starting material for the development of novel bioactive molecules and complex organic compounds
A chemical reagent employed in academic and industrial research for the synthesis of muscle relaxants and local anesthetics.
2,3-dihydro-1H-carbazol-4(9H)-one, also known as 1,2,3,9-tetrahydro-4H-carbazol-4-one, is a carbazole derivative primarily used as a key pharmaceutical intermediate in the synthesis of antiemetic drugs such as Ondansetron
This compound is widely utilized in the pharmaceutical and agrochemical industries for the development of active pharmaceutical ingredients (APIs) and bioactive molecules
It is a solid compound slightly soluble in DMSO and methanol, typically used in liquid-phase chemical synthesis and organic building block protocols
Standard specifications include CAS number 15128-52-6, a molecular weight of 185.22, high purity (typically 97-99%), and documentation such as COA, TDS, impurity reports, and regulatory compliance documents
Scimplify has capabilities for global distribution and custom synthesis through an integrated network of manufacturers and logistics partners with reliable lead time
The product is export ready with a standard MOQ starting from 100 kgs, with lead times for international customers depending on the shipping destination and specific grade.
Category : Pharmaceutical Actives & Precursors
Sub-Category : Intermediates & Precursors
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