Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Homouric Acid
Price: Check
Purity: 85.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,4,6,8-Tetrahydroxypyrimido[5,4-d]pyrimidine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6713-54-8

6713-54-8 structure

6713-54-8 structure

Name: Homouric Acid
Chemical Name: 1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8-tetrone
CAS Number: 6713-54-8
Molecular Formula: C₆H₄N₄O₄
Molecular Weight: 196.120
Create Date: 2019-01-02 18:28:33
Modify Date: 2025-08-25 11:13:10

Name	1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8-tetrone
Synonyms	2.4.6.8-Tetrahydroxy-pyrimido<5.4-d>pyrimidin(Oxyhomoharnsaeure) 1,5-dihydro-pyrimido[5,4-d]pyrimidine-2,4,6,8-tetraone 1,5-Dihydropyrimido[5,4-d]pyrimidine-2,4,6,8(3H,7H)-tetrone Homouric Acid Oxyhomouric Acid Pyrimido[5,4-d]pyrimidine-2,4,6,8(3H,7H)-tetrone, 1,5-dihydro- pyrimido[5,4-d]pyrimidine-2,4,6,8-tetrol 1,5-dihydro-pyrimido[5,4-d]pyrimidinetetraone 1,5-Dihydro-pyrimido[5,4-d]pyrimidintetraon 1,5-dihydropyrimido[5,4-d]pyrimidine-2,4,6,8(3H,7H)tetrone 2,4,6,8-Tetrahydroxypyrimido-[5,4-d]pyrimidine 2,4,6,8-Tetraoxo-octahydro-pyrimido<5,4-d>pyrimidin Dipyridamole Impurity 8

Density	2.2±0.1 g/cm3
Boiling Point	932.7±75.0 °C at 760 mmHg
Molecular Formula	C₆H₄N₄O₄
Molecular Weight	196.120
Flash Point	517.9±37.1 °C
Exact Mass	196.023254
PSA	132.48000
LogP	-2.92
Vapour Pressure	0.0±0.3 mmHg at 25°C
Index of Refraction	1.964

Hazard Codes	Xi
HS Code	2933990090

590-28-3 structure

590-28-3

7164-43-4 structure

7164-43-4

~%

6713-54-8 structure

6713-54-8

Literature: Justus Liebigs Annalen der Chemie, , vol. 572, p. 217,224

7164-43-4 structure

7164-43-4

57-13-6 structure

57-13-6

~%

6713-54-8 structure

6713-54-8

Literature: Justus Liebigs Annalen der Chemie, , vol. 572, p. 217,224

Precursor 3
590-28-3 7164-43-4 57-13-6
DownStream 0

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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