# Chempirical (Nitramine) API

**Canonical:** https://apis.io/apis/chempirical/chempirical-api/  
**Provider:** Chempirical — https://apis.io/providers/chempirical/  
**Base URL:** https://chempirical.com/api  
**Documentation:** https://chempirical.com/api/

Chempirical (Nitramine) API is published by [Chempirical](https://apis.io/providers/chempirical/) on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. Tagged areas include Chemistry, Compounds, and Reactions. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

Chempirical (Nitramine) API as documented publicly: 6 operations. Contract generated from the documentation by API Evangelist (2026-10-09); not the provider's own document.

## Operations (6)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/molecule-svg/50-78-2` | The structure as SVG. |
| GET | `/api/molecules/{moleculeid}` | One compound with names, formula, identifiers, molar and exact mass, density, melting and boiling point, Antoine constants, azeotropes, reactions, and struct... |
| POST | `/api/molecules/{moleculeid}` | POST /api/molecules/64-17-5 |
| GET | `/api/reactions/henry-nitroaldol` | One reaction with its participants: role, equivalents, molar mass and density of each. |
| GET | `/api/reactions/henry-nitroaldol/scale` | Scale a reaction from one reagent by specifying anchor CAS, unit and value. |
| GET | `/api/{apiid}` | Every set of Antoine constants in the database, with its valid temperature range. |

## Machine-readable artifacts (8)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/openapi/_ae-authored/chempirical-openapi-generated.yml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-get-api-molecules-moleculeid-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-get-api-reactions-henry-nitroaldol-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-get-api-apiid-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-get-api-reactions-henry-nitroaldol-scale-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-post-api-molecules-moleculeid-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/json-schema/chempirical-get-api-molecule-svg50782-response-schema.json
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/chempirical/refs/heads/main/apis.yml

## Tags

Chemistry, Compounds, Reactions

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/chempirical/chempirical-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/chempirical/.