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Methylthiouracil

Methylthiouracil Structure
Methylthiouracil
  • CAS No.56-04-2
  • Chemical Name:Methylthiouracil
  • CBNumber:CB3108758
  • Molecular Formula:C5H6N2OS
  • Formula Weight:142.18
  • MOL File:56-04-2.mol
Methylthiouracil Property
  • Melting point: :~330 °C (dec.)(lit.)
  • Density  :1.291 (estimate)
  • refractive index  :1.6430 (estimate)
  • pka :pKa 8.2 (Uncertain)
  • form  :Liquid
  • color  :Clear colorless to yellow
  • Water Solubility  :INSOLUBLE
  • Merck  :14,6128
  • BRN  :115648
  • Stability: :Stability Incompatible with strong oxidizing agents, iodine, metals.
  • InChIKey :HWGBHCRJGXAGEU-UHFFFAOYSA-N
  • CAS DataBase Reference :56-04-2(CAS DataBase Reference)
  • NIST Chemistry Reference :6-Methyl-2-thiouracil(56-04-2)
  • EPA Substance Registry System :Methylthiouracil (56-04-2)
Safety
  • Hazard Codes  :Xn,Xi
  • Risk Statements  :22-40
  • Safety Statements  :36/37-45
  • RIDADR  :UN 3077 9 / PGIII
  • WGK Germany  :3
  • RTECS  :YR0875000
  • Hazard Note  :Irritant/Possible Carcinogen
  • TSCA  :Yes
  • HS Code  :29335995
  • Hazardous Substances Data :56-04-2(Hazardous Substances Data)
  • Toxicity :MLD in rabbits (mg/kg): 2486 orally (Simon)
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H302-H351-H301
  • Precautionary statements P281-P201-P280-P301+P310a-P308+P313-P405-P501a
Methylthiouracil Price More Price(7)
  • Brand: Sigma-Aldrich
  • Product number: 69400
  • Product name : 6-Methyl-2-thiouracil
  • Purity: purum, ≥98.0% S basis (elemental analysis)
  • Packaging: 100g
  • Price: $85.8
  • Updated: 2019/12/02
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 69400
  • Product name : 6-Methyl-2-thiouracil
  • Purity: purum, ≥98.0% S basis (elemental analysis)
  • Packaging: 500g
  • Price: $322
  • Updated: 2019/12/02
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: M0443
  • Product name : 6-Methyl-2-thiouracil
  • Purity: >98.0%(T)
  • Packaging: 25g
  • Price: $22
  • Updated: 2019/12/02
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: M0443
  • Product name : 6-Methyl-2-thiouracil
  • Purity: >98.0%(T)
  • Packaging: 500g
  • Price: $218
  • Updated: 2019/12/02
  • Buy: Buy
  • Brand: Alfa Aesar
  • Product number: A17982
  • Product name : 6-Methyl-2-thiouracil, 98%
  • Purity: 
  • Packaging: 50g
  • Price: $17.8
  • Updated: 2019/12/02
  • Buy: Buy

Methylthiouracil Chemical Properties,Usage,Production

  • Chemical Properties white powder
  • Uses antithyroid agent
  • General Description White crystalline powder with an odor of onions and a bitter taste. A saturated aqueous solution is neutral or slightly acidic.
  • Air & Water Reactions Insoluble in water.
  • Reactivity Profile Methylthiouracil reacts with strong oxidizing agents. Forms complexes with metals and is oxidized by iodine and other sulfhydryl oxidizing agents .
  • Fire Hazard Flash point data for Methylthiouracil are not available. Methylthiouracil is probably combustible.
  • Safety Profile Confirmed carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic, and teratogenic data. Poison by intraperitoneal route. Moderately toxic by ingestion. Human teratogenic and reproductive effects by an unspecified route: developmental abnormalities of the endocrine system and effects on newborn including neonatal measures or effects. Experimental reproductive effects. Used to treat hyperthyroidism. When heated to decomposition it emits very toxic fumes of NOx and SOx.
  • Purification Methods Crystallise the thiouracil from a large volume of H2O. Purify it further by dissolving in base, adding charcoal, filtering and acidifying with AcOH. Suspend the wet solid (ca 100g) in boiling H2O (1L), stir and add AcOH (20mL), stir and refrigerate. Collect the product, wash it with cold H2O (4 x 200mL), drain it for several hours then place it in an oven at 70o to constant weight. [IR: Short & Thompson J Chem Soc 168 1952, Foster & Snyder Org Synth Coll Vol IV 638 1063, Beilstein 24 III/IV 1289.]
Methylthiouracil Preparation Products And Raw materials
Raw materials
Preparation Products
Methylthiouracil Suppliers
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