![6-Chloropyrimido[5,4-d]pyrimidin-4(3H)-one structure, CAS 189747-31-7](/structures/80000/77649_2_189747_31_7.png)
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 189747-31-7 |
| Catalog No. | 2A-9077649 |
| Chinese Name | 6-氯嘧啶并[5,4-d]嘧啶-4(3H)-酮 |
| Synonyms | qc-5627 |
| Molecular Formula | C6H3ClN4O |
| Molecular Weight | 194.22 |
| Density | 1.872g/cm3 |
| Boiling Point | 458.567ºC at 760 mmHg |
| HTC | 2933990090 |
| PubChem ID | 15612032 |
| SMILES | O=c1[nH]cnc2cnc(Cl)nc12 |
| InChI | InChI=1S/C6H3ClN4O/c7-6-8-1-3-4(11-6)5(12)10-2-9-3/h1-2H,(H,9,10,12) |
| InChI Key | OBLBJCVARYVWJH-UHFFFAOYSA-N |
| Tax Rebate | 13.0% |
| Supervision | None. MFN tariff: 6.5%. Ordinary tariff: 20.0% |
| Transport Info | Product name: Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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