| Identification | More |  [Name]
  Tetrahydrothiophen-3-one |  [CAS]
  1003-04-9 |  [Synonyms]
  3-THIOPHANONE 4,5-DIHYDRO-3(2H)-THIOPHENONE Dihydro-3-(2H)-thiophenone dihydrothiophen-3(2h)-one DIHYDRO-THIOPHEN-3-ONE FEMA 3266 TETRAHYDRO-3-THIOPHENONE TETRAHYDROTHIOPHEN-3-ONE TETRAHYDROTHIOPHENE-3-ONE TIMTEC-BB SBB007947 3(2H)-dihydrothiophenone 3(2H)-Thiophenone, dihydro- 3’-Tetrahydrothiophenone 3-Oxo-2,3,4,5-tetrahydrothiophene 3-Oxotetrahydrothiophene 3-Thiacyclopentanone dihydro-3(2h)-thiophenon Dihydro-3-Thiophenone Thiolan-3-one 4 5-DIHYDRO-3(2H)THIOPHENONE  98+% |  [EINECS(EC#)]
  213-698-9 |  [Molecular Formula]
  C4H6OS |  [MDL Number]
  MFCD00005412 |  [Molecular Weight]
  102.15 |  [MOL File]
  1003-04-9.mol |  
 | Chemical Properties | Back Directory |  [Boiling point ]
  175 °C(lit.) 
 |  [density ]
  1.194 g/mL at 25 °C(lit.) 
 |  [vapor density ]
  >1 (vs air) 
 |  [FEMA ]
  3266 |  [refractive index ]
  n20/D 1.528(lit.) 
 |  [Fp ]
  171 °F 
 |  [storage temp. ]
  2-8°C 
 |  [solubility ]
  Soluble in DMSO |  [form ]
  Liquid |  [color ]
  Colorless to pale yellow |  [Specific Gravity]
  1.194 |  [Odor]
  at 0.10 % in dipropylene glycol. garlic meaty green vegetables clams buttery |  [biological source]
  synthetic |  [Odor Type]
  alliaceous |  [JECFA Number]
  498 |  [BRN ]
  105201 |  [LogP]
  -0.29 |  [CAS DataBase Reference]
  1003-04-9(CAS DataBase Reference) |  [NIST Chemistry Reference]
  Dihydro-3-(2H)-thiophenone(1003-04-9) |  [EPA Substance Registry System]
  1003-04-9(EPA Substance) |  
 | Safety Data | Back Directory |  [Hazard Codes ]
  Xi |  [Risk Statements ]
  R36/37/38:Irritating to eyes, respiratory system and skin . |  [Safety Statements ]
  S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . |  [RIDADR ]
  UN 3334 |  [WGK Germany ]
  3 
 |  [F ]
  8-13 |  [Hazard Note ]
  Irritant |  [TSCA ]
  Yes |  [HS Code ]
  29349990 |  
 | Questions and Answers (Q&A) | Back Directory |  [Description]
  Tetrahydro-thiophene-3-one is a heterocyclic nonaromatic ketone. It has a garlic meaty, green vegetable, buttery odor.  It is present in cooked beef, coffee, roast filbert, and roasted peanut. 
Tetrahydro-thiophene-3-one is used as a food flavoring agent. It is also a valuable organic substance key that opens the synthetic access to numerous derivatives of thiophene.
 |  [References]
  [1] George A. Burdock (2010) Fenaroli's Handbook of Flavor Ingredients, Sixth Edition 
[2] https://pubchem.ncbi.nlm.nih.gov 
[3] Patent 0127121 A1: Process for the preparation of tetrahydro-thiophen-3-one
 |  
 | Hazard Information | Back Directory |  [Chemical Properties]
  4,5-Dihydro-3-(2H)thiophenone has a garlic meaty, green vegetable, buttery odor. It is a heterocyclic nonaromatic
ketone. |  [Chemical Properties]
  Clear light yellow liquid |  [Occurrence]
  Reported found in cooked beef, coffee, roasted filberts and roasted peanuts. |  [Uses]
  Used for blending soft drinks, beverage, meat products, confectionery, and milk product flavors. |  [Preparation]
  From 4-methoxycarboxyl-3-oxothiophane treated with 10% sulfuric acid. |  [Taste threshold values]
  Taste characteristics at 15 ppm: onion, garlic, cooked meaty with vegetables nuances |  [Synthesis Reference(s)]
  Journal of the American Chemical Society, 68, p. 2229, 1946 DOI: 10.1021/ja01215a034 |  
  
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