【杂环砌块定制】CAS:133073-73-1|Methotrexate hydrate(1:x)

【杂环砌块定制】CAS:191340-90-6|2-Chloro-3-(trifluoromethyl)pyrazine

【杂环砌块定制】CAS:1209646-17-2|5-(4-(tert-Butoxycarbonyl)piperazin-1-yl)pyrazine-2-carboxylic acid

【杂环砌块定制】CAS:160252-31-3|1-(5-Chloropyrazin-2-yl)ethanone

【杂环砌块定制】CAS:4858-85-9|2,3-Dichloropyrazine

【杂环砌块定制】CAS:5910-89-4|2,3-Dimethylpyrazine

【杂环砌块定制】CAS:330786-09-9|Methyl 3,5-dichloropyrazine-2-carboxylate

【杂环砌块定制】CAS:122-05-4|Pyrazine-2,5-dicarboxylic acid

【杂环砌块定制】CAS:1025719-23-6|1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)-1H-pyrazole

【杂环砌块定制】CAS:6705-33-5|Pyrazin-2-ylmethanol

【杂环砌块定制】CAS:89464-87-9|3-Methoxy-5-methylpyrazin-2-amine

【杂环砌块定制】CAS:1018446-60-0|Methyl 5-hydroxy-1H-pyrazole-3-carboxylate

【杂环砌块定制】CAS:58139-04-1|2-Iodo-3-methoxypyrazine

【杂环砌块定制】CAS:768-05-8|Pyrazinoic acid hydrazide

【杂环砌块定制】CAS:56881-21-1|Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate

【杂环砌块定制】CAS:19838-08-5|3-Methylpyrazin-2-amine

【杂环砌块定制】CAS:153800-11-4|2-Ethynylpyrazine

【杂环砌块定制】CAS:1000896-40-1|5-(Benzyloxy)-1H-pyrazol-3-amine

【杂环砌块定制】CAS:1000896-40-1|5-(Benzyloxy)-1H-pyrazol-3-amine

【杂环砌块定制】CAS:1049982|3-Methoxypyrazin-2-amine