Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Purity: 98.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Pyrimido[4,5-d]pyrimidine (8CI,9CI)
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Purity: 98.0%
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254-64-8

254-64-8 structure

254-64-8 structure

Name: Pyrimido[4,5-d]pyrimidine (8CI,9CI)
Chemical Name: pyrimido[4,5-d]pyrimidine
CAS Number: 254-64-8
Molecular Formula: C₆H₄N₄
Molecular Weight: 132.12300
Create Date: 2018-12-05 08:07:18
Modify Date: 2025-08-27 20:56:16

Name	pyrimido[4,5-d]pyrimidine
Synonyms	Pyrimidopyrimidin 1,3,6,8-Tetraazanaphthalene Pyrimido<4,5-d>pyrimidin

Molecular Formula	C₆H₄N₄
Molecular Weight	132.12300
Exact Mass	132.04400
PSA	51.56000
LogP	0.41980

HS Code	2933990090

HS Code	2933990090
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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