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1,4-Dithiane-2,5-diol

HCID 98330
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
40018-26-6
Standard SMILES
OC1CSC(O)CS1
InChIKey
YUIOPHXTILULQC-UHFFFAOYSA-N
Molecular formula
C4H8O2S2
Average molar mass
152.2 g/mol
Monoisotopic mass
151.9965715

Overview

1,4-Dithiane-2,5-diol is a member of dithianes.

Names & identifiers

Preferred name
1,4-Dithiane-2,5-diol
IUPAC
1,4-dithiane-2,5-diol
English name
2,5-Dihydroxy-1,4-dithiane
Molecular formula
C4H8O2S2
Molecular weight
152.24

Names & synonyms

1,4-Dithiane-2,5-diol40018-26-62,5-Dihydroxy-1,4-dithianeR4F79F1JB0NSC-106280FEMA NO. 3826DTXSID90865983RefChem:444434DTXCID80814329254-751-6p-Dithiane-2,5-diolMercaptoacetaldehyde dimer
Show more names
DITHIANEDHDTFEMA 38261,4-dithane-2,5-diol1,4-Dithiane-2,5-dioMERCATOACETALDEHYDE DIMERNSC 1062804-dithiane
MFCD000066594-dithiane-2,5-diol[1,4]dithiane-2,5-diol2,5-Dihydroxy-1,4-dithianDithianUNII-R4F79F1JB0EINECS 254-751-6mercapto acetaldehyde

Database identifiers

CAS
40018-26-6
PubChem CID
98330
DTXSID
DTXSID90865983
ChEBI
CHEBI:179581
UNII
R4F79F1JB0
EC Number
254-751-6
Nikkaji
J68.173C

Properties

Computed structural propertiesFilling in

XLogP
0.3
Topological polar surface area
91.1 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
4
Rotatable bonds
0
Heavy atoms
8
Formal charge
0
Complexity
68.4

Experimental & physicochemical properties

Food AdditivesFLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Flavoring AgentsEU Flavoring substances
Solubility · 3 items

slightly

slightly soluble in water; soluble in alcohol

(in ethanol)

Melting Point130.00 °C. @ 760.00 mm Hg
Physical Descriptionwhite to off-white powder

Physicochemical properties

Melting point
130 °C · 130 °C (dec.) (lit.)
Boiling point
244.73 °C · 244.73°C (rough estimate)
Density
1.224 · 1.224 (estimate)
vapor pressure
0 Pa · 0Pa at 25℃
FLAVIS Number
15.134 · 15.134 | 2,5-Dihydroxy-1,4-Dithiane
refractive index

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Danger

H302 (95.2%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P264+P265, P270, P272, P273, P280, P301+P317, P302+P352, P305+P354+P338, P317, P321, P330, P333+P317, P362+P364, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1439 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 4 items

Chemical: 1,4-Dithiane-2,5-diol

Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)

Status: Active Update: 17-03-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/19050

2,5-Dihydroxy-1,4-dithiane: Does not have an individual approval but may be used under an appropriate group standard

Hazard Classes and CategoriesAcute Tox. 4 (95.2%)

Safety data

F
1-8-10-13
PPE
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
wgk
2
ridadr
UN2811
hs_code
29349990
risk_code
22-41-43-52/53-36/37/38
Signal word
Danger
Symbol(GHS)
GHS06,GHS08,GHS09
hazard_code
Xn,Xi
safety_code
26-36/37/39-61-37/39-24-36

Chemistry & industry

Pharmacology

Cellular LocationsCytoplasm

Uses & manufacturing

Use Classification · 4 items

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavoring Agents -> JECFA Flavorings Index

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Applications · 3 items

Uses1,4-Dithiane-2,5-diol is a hydroxylated dithiane derivative with phytogrowth-inhibitory and antibacterial activities.

Uses1,4-Dithiane-2,5-diol was used in the synthesis of:substituted tetrahydrothiophene derivatives2-amino-3-(arylsulfonyl)thiophenes, potential antiviral and antitumor agents

General Description1,4-Dithiane-2,5-diol undergoes bifunctional squaramide catalyzed sulfa-Michael/aldol cascade reaction with chalcones to afford trisubstituted tetrahydrothiophenes. It participates in diastereoselective [3+3] cycloaddition with azomethine imines catalyzed by 1,4-diazabicyclo[2.2.2]octane. It is a mercaptoacetaldehyde dimer and an efficient synthon for incorporating a thiol group to in situ generated nitroalkenes.

Upstream & downstream products

Downstream products

Methyl 2-aminothiophene-3-carboxylate3-Methoxycarbonyl-3-sulfolenemethyl 2-(2-methoxy-2-oxoethyl)thiophene-3-carboxylate

Related reactions

38 records
New reaction record
HRID 9766 reaction equation
HRID 9766As reactantuspto-grants-2006_08
HRID 19567 reaction equation
HRID 19567As reactantuspto-grants-2010_06
HRID 50846 reaction equation
HRID 50846As reactantuspto-grants-2004_03
HRID 51227 reaction equation
HRID 51227As reactantuspto-grants-2004_03
HRID 133516 reaction equation
HRID 133516As reactantuspto-grants-2008_06
HRID 133520 reaction equation
HRID 133520As reactantuspto-grants-2008_06
HRID 269854 reaction equation
HRID 269854As reactantuspto-grants-2008_11
HRID 270640 reaction equation
HRID 270640As reactantuspto-grants-2008_11
Page 1 of 5

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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1.52 · 1.5200 (estimate)
FEMA
3826 · 3826 | 2,5-DIHYDROXY-1,4-DITHIANE
storage temp.
2 · 2-8°C
solubility
2 O: · H2O: 0.39% at 20 °C
form
Crystalline Powder
pka
12.04 · 12.04±0.40(Predicted)
color
White to yellow
PH
4.9 · 4.9 (3.9g/l, H2O)
Odor
0.1 % · at 0.10 % in propylene glycol. sulfury meaty toasted bread broth egg tomato
Odor Type
sulfurous
biological source
synthetic
Water Solubility
3.9 g/L · 3.9 g/L (20 ºC)
JECFA Number
550 · 550
BRN
104402 · 104402
Major Application
flavors and fragrances
InChI
1S/C4H8O2S2/c5-3-1-7-4(6)2-8-3/h3-6H,1-2H2
InChIKey
YUIOPHXTILULQC-UHFFFAOYSA-N
SMILES
OC1CSC(O)CS1
LogP
-0.276 at · -0.276 at 22.8℃ and pH6.3
Substances Added to Food (formerly EAFUS)
2 · 2,5-DIHYDROXY-1,4-DITHIANE
CAS DataBase Reference
40018 · 40018-26-6(CAS DataBase Reference)
FDA UNII
4 F79F1JB0 · R4F79F1JB0
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
6 · GHS06,GHS08,GHS09
Signal word
Danger
Hazard statements
301 · H301-H317-H330-H373-H410
Precautionary statements
260 · P260-P273-P280-P302+P352-P304+P340+P310-P314
PPE
95 · dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes
Xn,Xi
Risk Statements
22 · 22-41-43-52/53-36/37/38
Safety Statements
26 · 26-36/37/39-61-37/39-24-36
RIDADR
2811 · UN2811
WGK Germany
2 · 2
F
1 · 1-8-10-13
HazardClass
6.1 · 6.1
PackingGroup
III
HS Code
29349990 · 29349990
Storage Class
6.1 A · 6.1A - Combustible acute toxic Cat. 1 and 2very toxic hazardous materials
Hazard Classifications
2 InhalationAcute · Acute Tox. 2 InhalationAcute Tox. 3 OralAquatic Acute 1Aquatic Chronic 1Skin Sens. 1ASTOT RE 2
REACH Registrations
Active
hazard_class
6.1
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2very toxic hazardous materials
packing_group
III
Hazard statements
H301-H317-H330-H373-H410
REACH Registrations
Active
Hazard Classifications
Acute Tox. 2 InhalationAcute Tox. 3 OralAquatic Acute 1Aquatic Chronic 1Skin Sens. 1ASTOT RE 2
Precautionary statements
P260-P273-P280-P302+P352-P304+P340+P310-P314
2-Amino-3-cyanothiophene
(2-Aminothiophen-3-yl)(thiophen-2-yl)methanone
(2-Amino-thiophen-3-yl)-(4-fluoro-phenyl)-methanone

Additional notes

DefinitionChEBI: 1,4-Dithiane-2,5-diol is a member of dithianes.