Limiting reagent

Code snippets

curl "https://api.oanor.com/stoichiometry-api/v1/limiting-reagent" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/stoichiometry-api/v1/limiting-reagent", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/stoichiometry-api/v1/limiting-reagent");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/stoichiometry-api/v1/limiting-reagent",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "The limiting reagent has the smallest moles/coefficient ratio (reaction extent). The reaction stops when it runs out; the other reagent is left in excess.",
        "inputs": {
            "moles_a": 4,
            "moles_b": 1,
            "coefficient_a": 2,
            "coefficient_b": 1
        },
        "excess_reagent": "a",
        "reaction_extent": 1,
        "limiting_reagent": "b",
        "excess_remaining_moles": 2
    },
    "meta": {
        "timestamp": "2026-06-05T11:30:39.062Z",
        "request_id": "2f6f1591-a075-4aa0-9d0d-8a6a92adbfa8"
    },
    "status": "ok",
    "message": "Limiting reagent",
    "success": true
}