bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine

C169H113N75O13S13 — CID 158512557

About bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine

bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine (PubChem CID 158512557) has the molecular formula C169H113N75O13S13 and a molecular weight of 3819.15 g/mol. Its IUPAC name is bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine.

Molecular Properties

• Compound Name: bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine
• PubChem CID: 158512557
• Molecular Formula: C169H113N75O13S13
• Molecular Weight: 3819.15 g/mol
• Exact Mass: 3815.69
• IUPAC Name: bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine
• SMILES: c1cc2c(cn1)=NCN=2.c1cc2c(cn1)=NCN=2.c1cc2ccsc2nn1.c1cc2cnncc2s1.c1cc2ncoc2cn1.c1cc2ncoc2cn1.c1cc2ncoc2nn1.c1cc2ncoc2nn1.c1cc2ncsc2cn1.c1cc2ocnc2cn1.c1cc2ocnc2nn1.c1cc2sccc2nn1.c1cc2scnc2cn1.c1cc2scnc2nn1.c1cnc2c(c1)=NCN=2.c1cnc2c(c1)=NCN=2.c1cnc2ncoc2c1.c1cnc2ncsc2c1.c1cnc2ocnc2n1.c1cnc2ocnc2n1.c1cnc2sccc2c1.c1cnc2sccc2n1.c1nc2cnncc2o1.c1nc2cnncc2s1.c1ncc2ccsc2n1.c1ncc2ncoc2n1.c1ncc2ncoc2n1.c1ncc2ocnc2n1.c1ncc2sccc2n1.c1ncc2scnc2n1
• InChI: InChI=1S/C7H5NS.4C6H5N3.4C6H4N2O.9C6H4N2S.9C5H3N3O.3C5H3N3S/c1-2-6-3-5-9-7(6)8-4-1;2*1-2-7-3-6-5(1)8-4-9-6;2*1-2-5-6(7-3-1)9-4-8-5;1-2-7-3-5-6(1)9-4-8-5;2*1-2-7-3-6-5(1)8-4-9-6;1-2-5-6(7-3-1)8-4-9-5;1-4-9-6-5(1)7-2-3-8-6;1-3-7-8-5-2-4-9-6(1)5;1-3-7-8-6-5(1)2-4-9-6;1-2-7-3-5-6(1)9-4-8-5;1-2-9-6-3-7-4-8-5(1)6;1-2-7-3-6-5(1)8-4-9-6;1-2-9-6-5(1)3-7-4-8-6;1-2-9-6-4-8-7-3-5(1)6;1-2-5-6(7-3-1)8-4-9-5;1-4-5(7-2-6-1)8-3-9-4;2*1-4-5(7-2-6-1)9-3-8-4;1-4-5(2-8-7-1)9-3-6-4;2*1-2-7-5-4(6-1)8-3-9-5;1-2-7-8-5-4(1)9-3-6-5;2*1-2-7-8-5-4(1)6-3-9-5;1-4-5(7-2-6-1)8-3-9-4;1-4-5(2-8-7-1)9-3-6-4;1-2-7-8-5-4(1)9-3-6-5/h1-5H;4*1-3H,4H2;13*1-4H;12*1-3H
• InChIKey: HLFUXZSMGJAXSW-UHFFFAOYSA-N
• XLogP: 28.40
• TPSA: 1133.33 Ų
• H-Bond Acceptors: 101
• Heavy Atoms: 270
• Complexity: —

Lipinski Rule of Five

3 violations

Rule	Value
MW ≤ 500	3819.15
LogP ≤ 5	28.40
H-Bond Donors ≤ 5	0
H-Bond Acceptors ≤ 10	101

Frequently Asked Questions

What is the IUPAC name of bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine?

The IUPAC name of bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine (CID 158512557) is bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine.

What is the SMILES notation for bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine?

The canonical SMILES for bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine is c1cc2c(cn1)=NCN=2.c1cc2c(cn1)=NCN=2.c1cc2ccsc2nn1.c1cc2cnncc2s1.c1cc2ncoc2cn1.c1cc2ncoc2cn1.c1cc2ncoc2nn1.c1cc2ncoc2nn1.c1cc2ncsc2cn1.c1cc2ocnc2cn1.c1cc2ocnc2nn1.c1cc2sccc2nn1.c1cc2scnc2cn1.c1cc2scnc2nn1.c1cnc2c(c1)=NCN=2.c1cnc2c(c1)=NCN=2.c1cnc2ncoc2c1.c1cnc2ncsc2c1.c1cnc2ocnc2n1.c1cnc2ocnc2n1.c1cnc2sccc2c1.c1cnc2sccc2n1.c1nc2cnncc2o1.c1nc2cnncc2s1.c1ncc2ccsc2n1.c1ncc2ncoc2n1.c1ncc2ncoc2n1.c1ncc2ocnc2n1.c1ncc2sccc2n1.c1ncc2scnc2n1.

What is the InChIKey of bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine?

The InChIKey is HLFUXZSMGJAXSW-UHFFFAOYSA-N. The full InChI is InChI=1S/C7H5NS.4C6H5N3.4C6H4N2O.9C6H4N2S.9C5H3N3O.3C5H3N3S/c1-2-6-3-5-9-7(6)8-4-1;2*1-2-7-3-6-5(1)8-4-9-6;2*1-2-5-6(7-3-1)9-4-8-5;1-2-7-3-5-6(1)9-4-8-5;2*1-2-7-3-6-5(1)8-4-9-6;1-2-5-6(7-3-1)8-4-9-5;1-4-9-6-5(1)7-2-3-8-6;1-3-7-8-5-2-4-9-6(1)5;1-3-7-8-6-5(1)2-4-9-6;1-2-7-3-5-6(1)9-4-8-5;1-2-9-6-3-7-4-8-5(1)6;1-2-7-3-6-5(1)8-4-9-6;1-2-9-6-5(1)3-7-4-8-6;1-2-9-6-4-8-7-3-5(1)6;1-2-5-6(7-3-1)8-4-9-5;1-4-5(7-2-6-1)8-3-9-4;2*1-4-5(7-2-6-1)9-3-8-4;1-4-5(2-8-7-1)9-3-6-4;2*1-2-7-5-4(6-1)8-3-9-5;1-2-7-8-5-4(1)9-3-6-5;2*1-2-7-8-5-4(1)6-3-9-5;1-4-5(7-2-6-1)8-3-9-4;1-4-5(2-8-7-1)9-3-6-4;1-2-7-8-5-4(1)9-3-6-5/h1-5H;4*1-3H,4H2;13*1-4H;12*1-3H.

What are the key properties of bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine?

bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine has a molecular weight of 3819.15 g/mol, XLogP of 28.40, 0 rotatable bonds, 0 hydrogen bond donors, and 101 hydrogen bond acceptors.

Where does this data come from?

All data for bis(2H-imidazo[4,5-b]pyridine);bis(2H-imidazo[4,5-c]pyridine);bis([1,3]oxazolo[4,5-b]pyrazine);[1,3]oxazolo[4,5-b]pyridine;[1,3]oxazolo[4,5-c]pyridazine;bis([1,3]oxazolo[5,4-c]pyridazine);[1,3]oxazolo[4,5-c]pyridine;bis([1,3]oxazolo[5,4-c]pyridine);[1,3]oxazolo[4,5-d]pyridazine;[1,3]oxazolo[4,5-d]pyrimidine;bis([1,3]oxazolo[5,4-d]pyrimidine);[1,3]thiazolo[4,5-b]pyridine;[1,3]thiazolo[4,5-c]pyridazine;[1,3]thiazolo[4,5-c]pyridine;[1,3]thiazolo[5,4-c]pyridine;[1,3]thiazolo[4,5-d]pyridazine;[1,3]thiazolo[4,5-d]pyrimidine;thieno[2,3-b]pyrazine;thieno[2,3-b]pyridine;thieno[2,3-c]pyridazine;thieno[3,2-c]pyridazine;thieno[2,3-d]pyridazine;thieno[2,3-d]pyrimidine;thieno[3,2-d]pyrimidine is sourced from PubChem (CID 158512557), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).