5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE Chemical Properties

Melting point:

>260 °C (dec.)(lit.)

BRN 

3781587

CAS DataBase Reference

32014-70-3(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

RTECS 

YQ9625000

MSDS

• Language:English Provider:SigmaAldrich

5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE Usage And Synthesis

Uses

5,6-Diaminouracil sulfate is an intermediate in the synthesis of Paraxanthine (P192500) and Paraxanthine analogs.

Purification Methods

The salt is quite insoluble in H2O but can be converted to the free base which is recrystallised from H2O and converted to the sulfate by addition of the required amount of H2SO4. The hydrochloride has m 300-305o(dec) and can be used to prepare the sulfate by addition of H2SO4; it is more soluble than the sulfate. The perchlorate has m 252-254o. The free base has max at 260nm (log 4.24) in 0.1M HCl. [Bogert & Davidson J Am Chem Soc 86 1668 1933, Bredereck et al. Chem Ber 86 850 1953, Sherman & Taylor Org Synth Coll Vol IV 247 1963, Barlin & Pfleiderer J Chem Soc (B) 1425 1971, Beilstein 25 II 382.]

5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE(32014-70-3)Related Product Information

• 4,5-Diaminouracil
• TETRAMETHYLURIC ACID
• 1,3,7-TRIMETHYLURIC ACID
• 6-AMINO-1,3-DIMETHYL-5-NITROSOURACIL
• 1-METHYLURIC ACID
• Uric acid
• 5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE
• 5,6-Diamino-1,3-dimethyluracil hydrate
• 2,5-DIAMINO-4,6-DIHYDROXYPYRIMIDINE, SULFATE (2:1) (SALT)
• Uracil
• 1,3-Dimethyluric acid
• 3-METHYLURIC ACID
• 1,9-DIMETHYL-2,6,8-TRIHYDROXYPURINE
• 3,7-DIMETHYL-2,6,8-TRIHYDROXYPURINE
• 5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE DIHYDRATE
• LITHIUM ACID URATE
• 9-METHYLURIC ACID
• 7-METHYLURIC ACID