4,5-diamino-6-hydroxy-2-mercapto-pyrimidine CAS 1004-76-8

4,5-diamino-6-hydroxy-2-mercapto-pyrimidine - Names and Identifiers

Name	4,5-diamino-6-hydroxy-2-mercapto-pyrimidine
Synonyms	5,6-Diamino-2-thiouracil 4,5-DiaMino-6-hydroxy-2-Merc 5,6-diamino-2-mercaptopyrimidin-4-ol 5,6-Diamino-2-mercapto-pyrimidin-4-ol 4,5-diamino-2-mercaptopyrimidine-6-ol 5,6-diamino-2-thioxo-1H-pyrimidin-4-one 5,6-diamino-4-hydroxy-2-mercaptopyrimidine 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine 4,5-diamino-6-hydroxy-2-mercapto-pyrimidine 2-Mercapto-4-hydroxy-5,6-diamino-pyrimidine 4,5-DiaMino-2-MercaptopyriMidin-6-ol-13C,15N 5,6-diamino-2-sulfanylidene-1H-pyrimidin-4-one 4-5-diamino-6-hydroxy-2-*mercaptopyrimidine free 5,6-diamino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one 5,6-DiaMino-2,3-dihydro-2-thioxo-4(1H)-pyriMidinone-13C,15N -13C,15N 2-Mercapto-4,5-diaMino-6-hydroxypyriMidine-13C,15N
CAS	1004-76-8
EINECS	213-727-5
InChI	InChI=1/C4H6N4OS/c5-1-2(6)7-4(10)8-3(1)9/h5H2,(H4,6,7,8,9,10)
InChIKey	QYSWOQHLIDKEOL-UHFFFAOYSA-N

4,5-diamino-6-hydroxy-2-mercapto-pyrimidine - Physico-chemical Properties

Molecular Formula	C4H6N4OS
Molarmassa	158.18
Täthet	1.66±0.1 g/cm3(Predicted)
Melting Point	>300°C(lit.)
Boling Point	473°C at 760 mmHg
Blixtpunkt	239.9°C
Vapor Presure	1.43E-09mmHg at 25°C
pKa	8.10±0.60(Predicted)
Lagringstillstånd	Keep in dark place,Inert atmosphere,Room temperature
Refractive Index	1.776
Use	This product is for scientific research only and shall not be used for other purposes.

4,5-diamino-6-hydroxy-2-mercapto-pyrimidine - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/38 - Irritating to eyes and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing.
WGK Germany	3

4,5-diamino-6-hydroxy-2-mercapto-pyrimidine - Introduction

4,5-diamino-2-thiouracil (DASUTM) is an organic compound. The following is a description of its nature, use, preparation and safety information:

Nature:
-Appearance: DASUTM is a white crystalline solid.
-Solubility: It has low solubility in water, but it can be dissolved in organic solvents such as ethanol and dimethylformamide.

Use:
-Chemical reagents: DASUTM is widely used in the preparation of chemical reagents, especially for the preparation of pyrimidine and thiourea compounds.
-Insecticide: DASUTM can also be used as one of the raw materials of pesticides for agriculture and horticulture.

Preparation Method:
The preparation of DASUTM can be carried out by the following steps:
1. First, a thiouracil intermediate is obtained by reacting ammonium thiocyanate and dimethylformamide at an appropriate temperature.
2. Then, through the amination reaction, the thiouracil intermediate is converted into the final product 4,5-diamino-2-thiouracil.

Safety Information:
- DASUTM is a chemical reagent with certain toxicity. Wear protective glasses and gloves during operation to avoid direct contact with skin and mucous membranes.
-Avoid inhaling its dust or gas to avoid discomfort. If there is an abnormality, remove the affected person from the air quickly and seek medical help.
-Store it in a dry, well-ventilated place to avoid contact with oxidants and strong acids.
-Follow the correct treatment methods, including appropriate waste treatment and recycling measures, to reduce the risk of environmental pollution.