4,6-Dihydroxy-2-mercaptopyrimidine Top1 in the market CAS NO.504-17-6

Product Name: 4,6-Dihydroxy-2-mercaptopyrimidine
Synonyms: TBA;TIMTEC-BB SBB004132;THIOBARBITURIC ACID;2-mercaptobarbituricacid;2-thio-barbituricaci;5h)-pyrimidinedione,dihydro-2-thioxo-6(1h;6(1H,5H)-Pyrimidinedione,dihydro-2-thioxo-4;austranal
CAS: 504-17-6
MF: C4H4N2O2S
MW: 144.15
EINECS: 207-985-8
Product Categories: PYRIMIDINE;Heterocyclic Compounds;Aromatics Compounds;Aromatics;Bases & Related Reagents;Nucleotides;Sulfur & Selenium Compounds;Building Blocks;C4 to C5;Chemical Synthesis;Heterocyclic Building Blocks;Pyrimidines;Heterocycle-Pyrimidine series
Mol File: 504-17-6.mol

mp  245 °C (dec.)(lit.)
storage temp.  Controlled Substance, -20°C Freezer
Water Solubility  <6 g/L (20 ºC)
BRN  120663
Stability: Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference 504-17-6(CAS DataBase Reference)
NIST Chemistry Reference 4,6(1H,5h)-pyrimidinedione, dihydro-2-thioxo-(504-17-6)
EPA Substance Registry System 4,6(1H,5H)-Pyrimidinedione, dihydro-2-thioxo-(504-17-6)
Safety Information
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-37/39-26
WGK Germany  2
RTECS  CQ7700000
F  13-23
HS Code  29335995

【Product Name】

2-Thiobarbituric acid
【Synonyms】

2-Mercaptobarbituric acid
2-Thio-4,6-dioxypyrimidine
4,6-Dihydroxy-2-mercaptopyrimidine
Austranal
Bathyran
Dihydro-2-thioxo-4,6(1H,5H)-pyrimidinedione
【CAS】

504-17-6
【Formula】

C4H4N2O2S
【Molecular Weight】

144.15
【EINECS】

207-985-8
【RTECS】

CQ7700000
【RTECS Class】

Other
【Beilstein/Gmelin】

120663
【Beilstein Reference】

5-24-09-00108
Physical and Chemical Properties Back to Contents
【Appearance】

Slightly yellow liquid. With a stench.
【Solubility in water】

Very soluble
【Melting Point】

235
【Boiling Point】

419
【Density】

1.661 g/cm3
【pKa/pKb】

3.96 (pKa)
【Partition Coefficient】

-.81
【Usage】

Reagent for measuring the extent of lipid peroxidation in foods.
First Aid Measures Back to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and Storage Back to Contents
【Storage】

Store in a tightly closed container. Keep under a nitrogen blanket. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】

Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards Identification Back to Contents
【Ingestion】

Expected to be a low ingestion hazard. May cause nausea and vomiting.
【Inhalation】

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
【Skin】

May cause skin irritation.
【Eyes】

May cause eye irritation.
【EC Risk Phrase】

R 36/37/38
【EC Safety Phrase】

S 26 36
Exposure Controls/Personal Protection Back to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting Measures Back to Contents
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Accidental Release Measures Back to Contents
【Small spills/leaks】

Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability and Reactivity Back to Contents
【Disposal Code】

3
【Stability】

No data.
【Incompatibilities】

Stttrong oxidizing agents.
【Decomposition】

Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.
Transport Information Back to Contents
【HS Code】

2933 59 95