{ "meta": { "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.", "terms": "https://open.fda.gov/terms/", "license": "https://open.fda.gov/license/", "last_updated": "2025-09-19", "results": { "skip": 0, "limit": 1, "total": 1 } }, "results": [ { "codes": [ { "uuid": "68230553-a770-4be4-8965-39e18fafd7f1", "code": "52517-54-1", "type": "PRIMARY", "url": "https://commonchemistry.cas.org/detail?cas_rn=52517-54-1", "code_system": "CAS", "references": [ "3c36e465-d728-4fb5-89c5-52b9d8beaafe", "25abe460-1f45-4564-a00a-73c740a45a89" ] }, { "uuid": "b52647cc-6808-4c48-be01-5a79284ec6ac", "code": "21036679", "type": "PRIMARY", "url": "https://pubchem.ncbi.nlm.nih.gov/compound/21036679", "code_system": "PUBCHEM", "references": [ "3c36e465-d728-4fb5-89c5-52b9d8beaafe" ] }, { "uuid": "7f305c26-389b-44f0-803e-76f48bbbe5a2", "code": "VL2ZUB63ZU", "type": "PRIMARY", "code_system": "FDA UNII" }, { "uuid": "b65d24da-845b-1d71-ce4c-d95a5b547386", "code": "DTXSID501019843", "type": "PRIMARY", "url": "https://comptox.epa.gov/dashboard/chemical/details/DTXSID501019843", "code_system": "EPA CompTox" } ], "substance_class": "chemical", "names": [ { "uuid": "9c3e441e-7197-488c-bd54-2c607ea07069", "name": "5,6,7,8-Tetrahydro-5-methylquinoxaline", "stdName": "5,6,7,8-TETRAHYDRO-5-METHYLQUINOXALINE", "type": "sys", "languages": [ "en" ], "preferred": false, "references": [ "a432550c-46bf-4489-9264-2880901b68bc", "949b5a4d-7950-4b2c-be8f-f5e6f16a1741" ], "display_name": true }, { "uuid": "fb67b6a9-6c99-43ab-be3a-d91a82becf52", "name": "5-METHYL-5,6,7,8-TETRAHYDROQUINOXALINE", "stdName": "5-METHYL-5,6,7,8-TETRAHYDROQUINOXALINE", "type": "sys", "languages": [ "en" ], "preferred": false, "references": [ "a432550c-46bf-4489-9264-2880901b68bc", "edaad77e-5d8b-4c22-a4fa-25bff442f971" ], "display_name": false }, { "uuid": "23c91621-69e4-4343-b362-617b2a8f2665", "name": "Quinoxaline, 5,6,7,8-tetrahydro-5-methyl-", "stdName": "QUINOXALINE, 5,6,7,8-TETRAHYDRO-5-METHYL-", "type": "sys", "languages": [ "en" ], "preferred": false, "references": [ "a432550c-46bf-4489-9264-2880901b68bc", "edaad77e-5d8b-4c22-a4fa-25bff442f971" ], "display_name": false } ], "references": [ { "uuid": "a432550c-46bf-4489-9264-2880901b68bc", "citation": "STN (SCIFINDER)", "doc_type": "STN (SCIFINDER)", "public_domain": true, "tags": [ "NOMEN" ] }, { "uuid": "949b5a4d-7950-4b2c-be8f-f5e6f16a1741", "citation": "EC", "doc_type": "SRS", "public_domain": true, "tags": [ "NOMEN" ] }, { "uuid": "3c36e465-d728-4fb5-89c5-52b9d8beaafe", "citation": "SRS CODE IMPORT", "doc_type": "SRS", "public_domain": true, "document_date": 1493392732000, "tags": [ "NOMEN" ] }, { "uuid": "edaad77e-5d8b-4c22-a4fa-25bff442f971", "citation": "STN", "doc_type": "SRS", "public_domain": true, "tags": [ "NOMEN" ] }, { "uuid": "25abe460-1f45-4564-a00a-73c740a45a89", "citation": "STN", "doc_type": "STN (SCIFINDER)", "public_domain": true, "tags": [ "PUBLIC_DOMAIN_RELEASE", "NOMEN" ] } ], "definition_type": "PRIMARY", "moieties": [ { "uuid": "e6524e97-5de6-4cc7-85f4-420f46ef1958", "id": "e6524e97-5de6-4cc7-85f4-420f46ef1958", "molfile": "\n Marvin 01132111552D \n\n 11 12 0 0 0 0 999 V2000\n 8.1888 -4.4990 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.1888 -5.3240 0.0000 C 0 0 0 0 0 0 0 0 0 3 0 0\n 7.4744 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 7.4744 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.1888 -6.9740 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.9033 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 9.6178 -6.9740 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0\n 10.3322 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 10.3322 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 9.6178 -5.3240 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0\n 8.9033 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 1 2 1 0 0 0 0\n 2 3 1 0 0 0 0\n 2 11 1 0 0 0 0\n 3 4 1 0 0 0 0\n 4 5 1 0 0 0 0\n 6 5 1 0 0 0 0\n 6 7 1 0 0 0 0\n 11 6 2 0 0 0 0\n 7 8 2 0 0 0 0\n 9 8 1 0 0 0 0\n 10 9 2 0 0 0 0\n 11 10 1 0 0 0 0\nM END", "smiles": "CC1CCCc2c1nccn2", "formula": "C9H12N2", "atropisomerism": "No", "charge": 0, "count": 1, "stereochemistry": "RACEMIC", "count_amount": { "type": "MOL RATIO", "average": 1, "units": "MOL RATIO", "uuid": "77a9651a-6814-4d3e-9c56-6fc1920ffa29" }, "defined_stereo": 0, "ez_centers": 0, "molecular_weight": "148.2053", "optical_activity": "( + / - )", "stereo_centers": 1 } ], "definition_level": "COMPLETE", "uuid": "700b274e-eaf0-4d08-b31c-a5b6dba92c07", "version": "5", "structure": { "id": "d1d09969-2ed7-4543-9e2b-29023d3c61a9", "molfile": "\n Marvin 01132110512D \n\n 11 12 0 0 0 0 999 V2000\n 8.1888 -4.4990 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.1888 -5.3240 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.9033 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.9033 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 8.1888 -6.9740 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 7.4744 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 7.4744 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 9.6178 -6.9740 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0\n 10.3322 -6.5614 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 10.3322 -5.7364 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0\n 9.6178 -5.3240 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0\n 1 2 1 0 0 0 0\n 2 3 1 0 0 0 0\n 3 4 1 0 0 0 0\n 4 5 1 0 0 0 0\n 6 5 1 0 0 0 0\n 7 6 1 0 0 0 0\n 2 7 1 0 0 0 0\n 4 8 2 0 0 0 0\n 8 9 1 0 0 0 0\n 10 9 2 0 0 0 0\n 11 10 1 0 0 0 0\n 3 11 2 0 0 0 0\nM END", "smiles": "CC1CCCc2c1nccn2", "formula": "C9H12N2", "atropisomerism": "No", "charge": 0, "count": 1, "stereochemistry": "RACEMIC", "defined_stereo": 0, "ez_centers": 0, "molecular_weight": "148.2053", "optical_activity": "( + / - )", "references": [ "edaad77e-5d8b-4c22-a4fa-25bff442f971" ], "stereo_centers": 1 }, "unii": "VL2ZUB63ZU" } ] }