Basic information
- CAS
55704-78-4- Standard SMILES
CC1(O)CSC(C)(O)CS1- InChIKey
NHKIYYMFGJBOTK-UHFFFAOYSA-N- Molecular formula
- C6H12O2S2
- Average molar mass
- 180.3 g/mol
- Monoisotopic mass
- 180.02787197
Names & identifiers
- Preferred name
- 2,5-Dimethyl-2,5-dihydroxy-1,4-dithiane
- IUPAC
- 2,5-dimethyl-1,4-dithiane-2,5-diol
- English name
- Dimeric mercapto propanone
- Molecular formula
- C6H12O2S2
- Molecular weight
- 180.29
Names & synonyms
Show more names
Database identifiers
- CAS
55704-78-4- PubChem CID
- 62105
- DTXSID
DTXSID3047683- ChEMBL
CHEMBL3181874- ChEBI
CHEBI:178973- UNII
- N99176196Z
- EC Number
- 259-770-3
- Nikkaji
- J285.273J
Properties
Computed structural properties
- XLogP
- 0.6
- Topological polar surface area
- 91.1 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 10
- Formal charge
- 0
- Complexity
- 126
Experimental & physicochemical properties
Solubility
slightly
slightly soluble in water; soluble in alcohol
(in ethanol)
Physicochemical properties
- Melting point
- 64 °C · 64 °C
- Boiling point
- 283.13 °C · 283.13°C (rough estimate)
- Density
- 1.147 · 1.147 (estimate)
- refractive index
- 1.539 · 1.5390 (estimate)
- FEMA
- 3450 · 3450 | 2,5-DIMETHYL-2,5-DIHYDROXY-1,4-DITHIANE
- FLAVIS Number
- 15.006 · 15.006 | 2,5-Dihydroxy-2,5-dimethyl-1,4-dithiane
- Flash point
- 47 °C · 47°C
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- soluble in Methanol
- pka
- 12.12 · 12.12±0.40(Predicted)
- form
- solid
- color
- White to Almost white
- Odor
- 0.1 % · at 0.10 % in propylene glycol. pork lamb chicken savory bouillon onion
- Odor Type
- meaty
- biological source
- synthetic
- Water Solubility
- slightly soluble
- JECFA Number
- 562 · 562
- Major Application
- flavors and fragrances
- InChI
- 1S/C6H12O2S2/c1-5(7)3-10-6(2,8)4-9-5/h7-8H,3-4H2,1-2H3
- InChIKey
- NHKIYYMFGJBOTK-UHFFFAOYSA-N
- SMILES
- CC1(O)CSC(C)(O)CS1
- LogP
- 1.01 · 1.01
- CAS DataBase Reference
- 55704 · 55704-78-4(CAS DataBase Reference)
- Substances Added to Food (formerly EAFUS)
- 2 · 2,5-DIMETHYL-2,5-DIHYDROXY-1,4-DITHIANE
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 99176196 Z · N99176196Z
- EPA Substance Registry System
- 1 · 1,4-Dithiane-2,5-diol, 2,5-dimethyl- (55704-78-4)
- UNSPSC Code
- 12164502 · 12164502
- NACRES
- 21 · NA.21
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319
- Precautionary statements
- 264 · P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
- Hazard Codes
- F;Xi,Xi,F
- Risk Statements
- 11 · 11-36/37/38
- Safety Statements
- 16 · 16-26-37/39
- RIDADR
- 3335 · UN 3335
- WGK Germany
- 3 · 3
- TSCA
- TSCA listed
- HS Code
- 2934.99 · 2934.99.9001
- Storage Class
- 11 · 11 - Combustible Solids
Safety & regulation
GHS classification
GHS Classification
Warning
H302 (99.1%): Harmful if swallowed [Warning Acute toxicity, oral]
P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1378 reports by companies from 4 notifications to the ECHA C&L Inventory.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Regulatory Information
Chemical: 1,4-Dithiane-2,5-diol, 2,5-dimethyl-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
1,4-Dithiane-2,5-diol, 2,5-dimethyl-: Does not have an individual approval but may be used under an appropriate group standard
Regulatory information
Regulatory Information
Chemical: 1,4-Dithiane-2,5-diol, 2,5-dimethyl-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
1,4-Dithiane-2,5-diol, 2,5-dimethyl-: Does not have an individual approval but may be used under an appropriate group standard
Safety data
- wgk
- 3
- tsca
- TSCA listed
- ridadr
- UN 3335
- hs_code
- 2934.99.9001
- risk_code
- 11-36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- F;Xi,Xi,F
- safety_code
- 16-26-37/39
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H315-H319
- Precautionary statements
- P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
Chemistry & industry
Pharmacology
Uses & manufacturing
Use Classification
Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes
Flavoring Agents -> JECFA Flavorings Index
Applications
OccurrenceReported found in heated pork.
Uses2,5-Dihydroxy-2,5-dimethyl-1,4-dithiane is a useful reactant for the preparation of tetrahydrothiopyranols via a [3+3]-annulation of cyclopropane diesters.
Upstream & downstream products
Upstream raw materials
Suppliers100 total
Additional notes
DefinitionChEBI: 2,5-Dimethyl-1,4-dithiane-2,5-diol is a member of dithianes.
Related reactions
Compound notes
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