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HONGKUN / PRODUCT DIRECTORY

3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one | CAS 503615-03-0

A para-nitrophenyl lactam in published apixaban intermediate chemistry, combining a morpholino-substituted double bond with a six-membered cyclic amide. The nitro group identifies the stage before later aromatic substitution.

CAS503615-03-0
Molecular formulaC15H17N3O4
Molecular weight303.31 g/mol

Product overview

The para nitro group, morpholin-4-yl substituent and unsaturated six-membered lactam distinguish this apixaban-related fragment. It represents the nitro-bearing stage before the later piperidinone-bearing structure. Specify nitro identity, double-bond placement and morpholine attachment for synthetic evaluation or analytical method development.

Chemical identity

Chemical name
3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-one
CAS number
503615-03-0
Molecular formula
C15H17N3O4
Molecular weight
303.31 g/mol

Application context

This N-4 intermediate in published apixaban chemistry retains the para nitro group, unsaturated lactam and morpholine substituent. It is also used in apixaban-related analytical research. For synthetic evaluation or method development, specify the nitro-bearing stage and establish analytical separation from the corresponding aromatic reduction products and later piperidinone-bearing intermediates.

Chemistry and synthetic role

The para nitrophenyl group, unsaturated lactam and morpholin-4-yl substituent define independent structural features. Identity testing should establish each feature and distinguish relevant aromatic reduction or substitution products.

Quality review

Verify the nitro-bearing stage

Confirm the para nitro group and distinguish the corresponding aromatic amine when it is relevant to the supplier’s route.

Check the lactam connectivity

Use structure-sensitive identification to confirm the lactam double bond, morpholine attachment and para-nitrophenyl substitution.

Define reference-material requirements

For analytical use, define the assigned content, structural characterization and batch evidence needed for the intended method.

Preparing a specification

Specify CAS 503615-03-0, the nitrophenyl unsaturated lactam structure and intended synthetic or analytical use. Agree chromatographic separation of relevant aromatic-stage and ring-related compounds. For a reference-material enquiry, define the required content assignment, traceability and uncertainty information according to the method being developed.

Packaging and storage

Agree packaging, net weight and transport arrangements for the selected grade, quantity and destination. Confirm storage and handling conditions using the current SDS for the proposed material.

Documentation

Request the proposed specification, identity data, batch COA and SDS. For analytical work, confirm availability of a suitable chromatogram and content-assignment documentation linked to the exact CAS and structure.

Procurement questions

Is this the dilactam CAS 545445-44-1?

No. This compound retains the para nitro group; the dilactam has a different aromatic substituent and formula.

What should identify the material in an analytical enquiry?

Use CAS 503615-03-0 and the complete nitrophenyl–unsaturated-lactam structure, together with the intended method and content-assignment needs.

Which functional groups should identity tests confirm?

The para nitro group, lactam double bond and morpholine attachment, using structure-sensitive data.

Technical sources
  1. PubChem CID 21936809 — structure propertiesPubChem / NCBI
  2. PubChem CID 21936809 — CAS and synonymsPubChem / NCBI
  3. 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin-2(1H)-oneAmbeed
  4. 381st SEAC Gujarat meeting, 15 March 2022, page 98Government of India / Gujarat SEAC
  5. Apixaban impurity 22, HY-Z5330MedChemExpress