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 |  | p-Mentha-8-thiol-3-one Basic information |  
 | Product Name: | p-Mentha-8-thiol-3-one |  | Synonyms: | 8- thiol;8-Mercaptomenthone, tech., 80%;2-(1-mercapto-1-methylethyl)-5-methyl-cyclohexanon;PUGELONE MERRCAPTAN;PULEGONE MERCAPTAN;P-MENTHAN-3-ONE-8-THIOL;P-MENTHA-8-THIOL-3-ONE;8-MERCAPTOMENTHONE |  | CAS: | 38462-22-5 |  | MF: | C10H18OS |  | MW: | 186.31 |  | EINECS: | 253-953-1 |  | Product Categories: | thiol  Flavor |  | Mol File: | 38462-22-5.mol |    |  
  
 |  | p-Mentha-8-thiol-3-one Chemical Properties |  
 | Boiling point  | 56 °C0.1 mm Hg(lit.) |  | density  | 1 g/mL at 25 °C(lit.) |  | refractive index  | n20/D 1.495(lit.) |  | FEMA  | 3177 | P-MENTHA-8-THIOL-3-ONE |  | Fp  | 227 °F |  | form  | Liquid |  | pka | 10.56±0.10(Predicted) |  | color  | Clear yellow to dark yellow |  | Odor | at 1.00 % in dipropylene glycol. sulfury minty green fruity berry buchu fruity tropical peach |  | Odor Type | sulfurous |  | optical activity | [α]20/D 21°, neat |  | JECFA Number | 561 |  | InChIKey | RVOKNSFEAOYULQ-UHFFFAOYSA-N |  | LogP | 2.624 (est) |  | EPA Substance Registry System | Cyclohexanone, 2-(1-mercapto-1-methylethyl)-5-methyl- (38462-22-5) |  
  
| Hazard Codes  | Xn,N |  | Risk Statements  | 22-50 |  | Safety Statements  | 60-61 |  | RIDADR  | UN 2810 6.1/PG 3 |  | WGK Germany  | 2 |  | TSCA  | Yes |  | PackingGroup  | III |  | HS Code  | 29309090 |  
  
 |  | p-Mentha-8-thiol-3-one Usage And Synthesis |  
 | Description | P-Menthα-8-thiol-3-one has a black-currant flavor. May be prepared by reaction of pulegone or isopulegone with hydrogen sulfide excess and ethanolic potassium hydroxide. |  | Chemical Properties | p-Mentha-8-thiol-3-one is an
essential odoriferous constituent of buchu leaf oil. The commercial product is
synthesized from pulegone and is a liquid mixture of cis–trans-isomers with a
typical blackcurrant odor. 8-Mercapto-p-menthan-3-one is prepared by reacting
pulegone with hydrogen sulfide in the presence of a base (e.g., triethylamine). 
This powerful fragrance and flavor substance is used in perfume and aroma
compositions. |  | Chemical Properties | clear yellow to dark yellow liquid |  | Chemical Properties | p-Mentha-8-thiol-3-one has a black currant flavor. |  | Occurrence | Reported found in buchu oil. |  | Uses | p-Mentha-8-thiol-3-one is a flavour in food. |  | Preparation | By reaction of pulegone or isopulegone with hydrogen sulfide excess and ethanolic potassium hydroxide. |  | Definition | ChEBI: 8-Mercapto-p-menthan-3-one is a p-menthane monoterpenoid. |  | Aroma threshold values | Aroma characteristics at 0.001%: sweet, pungent, minty and piney, buchulike and catty, sulfurous, metal lic, thiomenthome-like, blackberry, blackcurrant and grape fruity, with an earthy background. |  | Taste threshold values | Taste characteristics at 5 ppm: minty, fruity, buchu-like, with a cooling, green tropical nuance, winey, sul furous and catty, metallic, slightly durnianlike, grape, blackcurrant, blackberry with a somewhat creamy mouthfeel. |  
  
 |  | p-Mentha-8-thiol-3-one Preparation Products And Raw materials |  
  
 
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