56-06-4
2,4-Diamino-6-hydroxypyrimidine
CAS: 56-06-4
Molecular Formula: C4H6N4O
56-06-4 - Names and Identifiers
| Name | 2,4-Diamino-6-hydroxypyrimidine |
| Synonyms | DAHP 2,6-Diamino-4-pyrimidinol 2,6-Diamino-4-pyrimidinone 2,6-Diamino-4-Hydroxyprimidine 2,6-diaminopyrimidin-4(1H)-one 2,4-Diamino-6-hydroxypyrimidine 2,4-Diamino-6-hydroxypyrimidine monohydrate |
| CAS | 56-06-4 |
| EINECS | 200-254-4 |
| InChI | InChI=1/C4H6N4O.H2O4S/c5-2-1-3(9)8-4(6)7-2;1-5(2,3)4/h1H,(H5,5,6,7,8,9);(H2,1,2,3,4) |
56-06-4 - Physico-chemical Properties
| Molecular Formula | C4H6N4O |
| Molar Mass | 126.12 |
| Melting Point | 285-286℃ |
| Boling Point | 288.5°C at 760 mmHg |
| Flash Point | 128.3°C |
| Vapor Presure | 0.00232mmHg at 25°C |
| Appearance | Yellow needle crystal |
| Storage Condition | 2-8℃ |
| MDL | MFCD00006098 |
| Physical and Chemical Properties | Characteristic yellow needle-like crystals. Melting Point: 260-270 ℃ |
| Use | Used as a pharmaceutical Intermediate |
56-06-4 - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
56-06-4 - Nature
Open Data Verified Data
yellow needle Crystal (acetic acid) or crystal (water), containing 1 mol of crystal water, melting point 285~286 C (decomposition).
Last Update：2024-01-02 23:10:35
56-06-4 - Preparation Method
Open Data Verified Data
guanidine nitrate was heated and stirred in sodium methoxide (or 50% NaOH) and refluxed for half an hour, then methyl cyanoacetate was added dropwise and refluxed for 2 hours. After completion of the reaction, methanol was recovered by heating. The residue was dissolved by adding hot water. When the heating temperature reached 80 ℃, acetic acid was added to adjust pH = 8, and the product was crystallized, cooled to below 20 ℃, filtered, washed and dried.
Last Update：2022-01-01 10:53:21
56-06-4 - Use
Open Data Verified Data
The synthetic intermediates such as cancer-M, chlorpromazine, folic acid, acyclovir, ganciclovir, etc. Also used for nitrate (ester) or nitrite (ester) determination.
Last Update：2022-01-01 10:53:21
56-06-4 - Safety
Open Data Verified Data
- low toxicity. Operators should wear protective gear.
- lined with plastic bag, external woven bag packaging. Store in a cool, ventilated, dry place, sunscreen, moisture, away from fire, heat source. Light loading and light unloading should be carried out to avoid package breakage.
Last Update：2022-01-01 10:53:22
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