{output}: Get compound properties by InChIKey

API: nih.gov:pubchem-property-api
Endpoint: /compound/inchikey/{inchikey}/property/{properties}/{output}
Response format: application/json
Auth: unknown
Method: GET
Last Status: 200
Latency: 657ms

Description

Retrieve chemical properties for a compound specified by its InChIKey

Parameters (3)

inchikey (string, path, required)

InChIKey identifier

output (string, path, required, default: JSON)

Output format

Constraints: {'enum': ['JSON', 'XML']}

properties (string, path, required)

Comma-separated list of properties to retrieve

Examples (3)

Get properties by InChIKey openapi-spec

curl 'https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/BSYNRYMUTXBXSQ-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON'

import requests

resp = requests.get("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/BSYNRYMUTXBXSQ-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON")
data = resp.json()

import zingu_apis

api = zingu_apis.api("pubchem-property")
result = api.fetch("compound/inchikey/{inchikey}/property/{properties}/{output}")

for item in result:
    print(item)

const resp = await fetch("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/BSYNRYMUTXBXSQ-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON");
const data = await resp.json();

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Auto Table Raw

Get compound properties by InChIKey openapi-spec

curl 'https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/{output}'

import requests

resp = requests.get("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/{output}")
data = resp.json()

import zingu_apis

api = zingu_apis.api("pubchem-property")
result = api.fetch("compound/inchikey/{inchikey}/property/{properties}/{output}")

for item in result:
    print(item)

const resp = await fetch("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/{output}");
const data = await resp.json();

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Auto Table Raw

Get compound properties by InChIKey probe-gate

curl 'https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON'

import requests

resp = requests.get("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON")
data = resp.json()

import zingu_apis

api = zingu_apis.api("pubchem-property")
result = api.fetch("compound/inchikey/{inchikey}/property/{properties}/{output}")

for item in result:
    print(item)

const resp = await fetch("https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/inchikey/XLYOFNOQVPJJNP-UHFFFAOYSA-N/property/MolecularFormula,MolecularWeight/JSON");
const data = await resp.json();

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Auto Table Raw

Probe History

Latency

Status Codes

Time	Status	Latency
2026-04-16 01:21:59.825902	200	657ms
2026-04-16 00:33:17.043163	200	538ms
2026-04-15 03:04:13.703958	200	441ms
2026-04-15 01:35:48.057905	200	502ms
2026-04-14 01:50:34.565908	200	468ms
2026-04-14 00:42:22.403966	200	432ms
2026-04-12 13:16:21.245467	200	497ms
2026-04-12 12:34:39.846189	200	546ms
2026-04-10 02:19:18.426455	200	397ms
2026-04-10 00:05:47.390707	200	592ms
2026-04-09 02:32:51.961765	200	530ms
2026-04-09 00:38:04.437941	200	456ms
2026-03-23 09:11:21.961081	200	450ms
2026-03-23 09:06:19.699671	200	443ms