---
title: "Small molecules renderer"
slug: "connector-spo-renderer-references-small-mol"
updated: 2026-01-29T13:00:06Z
published: 2026-01-29T13:00:06Z
canonical: "docs.discngine.com/connector-spo-renderer-references-small-mol"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.discngine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Small molecules renderer

The renderer **Discngine Molecule Renderer** can be used to display small molecules of various chemical formats in an atom-bond representation in all Spotfire visualization types.

## Supported formats

Several chemical formats can be rendered using the **Discngine Molecule Renderer**. To have this renderer available in the Spotfire interface, the corresponding column must have the appropriate [content-type](/public/docs/connector-spo-renderer-guides-content-type).

The supported formats and content-types are listed below:

- Molfile
  - chemical/x-mdl-sdfile
  - chemical/x-mdl-molfile
  - chemical/mdl-molfile-v3000
  - chemical/x-mdl-molfile-v3000
  - mol
- Smiles
  - chemical/x-daylight-smiles
  - chemical/smiles
  - chemical/x-smiles
  - smiles
- InChI
  - chemical/x-inchi

## Renderer Settings

It is possible to customize the rendering of small molecules by changing the renderer settings from Spotfire interface:

![Small Molecule Renderer Settings](https://connector.discngine.com/images-doc360/spo_renderer/renderer_settings.png)

### General

In this section, you have common settings for the rendering of small molecules.

- Transparent background: apply transparent background or white background to images

![Transparent vs No Transparent](https://connector.discngine.com/images-doc360/spo_renderer/transparent_no_transparent.png)

- Bonds width: the width of the bonds

![Small vs Big Bonds Width](https://connector.discngine.com/images-doc360/spo_renderer/small_big_bond_width.png)

- Show stereo annotations: to display or not stereochemistry annotations

![Show Stereo Annotations](https://connector.discngine.com/images-doc360/spo_renderer/show_stereo_annotations.png)

- Show Sgroups (V2000 only): to display or not the Sgroups brackets in V2000 format  

**NB:** Sgroups can be displayed in V3000 format, depending on the RDKit supported features, but this option only gives the possibility to hide Sgroups defined in V2000 format.

![Show Sgroups](https://connector.discngine.com/images-doc360/spo_renderer/show_sgroups.png)

### Highlights (atoms and bonds)

If a column contains a Molfile V3000 with highlight information, it can be displayed.

- Show highlights: to display or not the highlights
- Default highlight color: the color of the highlights

![Default Highlight color vs User Customized Highlight Color](https://connector.discngine.com/images-doc360/spo_renderer/default_hg_custom_hg.png)

- Default opacity: the opacity of the highlights

![Default Opacity vs User Customized Opacity](https://connector.discngine.com/images-doc360/spo_renderer/default_op_custom_op.png)