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1,3-Dimercaptopropane

Application Toxicity Usage restriction

CAS No.109-80-8
Chemical Name:1,3-Dimercaptopropane
CBNumber:CB8287704
Molecular Formula:C3H8S2
Formula Weight:108.23
MOL File:109-80-8.mol

1,3-Dimercaptopropane Property

Melting point -79 °C (lit.)
Boiling point 169 °C (lit.)
Density 1.078 g/mL at 25 °C (lit.)
vapor density >1 (vs air)
vapor pressure 5 mm Hg ( 37.7 °C)
refractive index n20/D 1.539(lit.)
FEMA 3588 | 1,3-PROPANEDITHIOL
Flash point 138 °F
storage temp. Store below +30°C.
pka 9.86±0.10(Predicted)
form Liquid
Specific Gravity 1.078
color Clear light yellow
Odor at 0.10 % in propylene glycol. meaty sulfurous
Odor Type meaty
biological source synthetic
Water Solubility <0.1 g/100 mL at 21 ºC
JECFA Number 535
Merck 14,7801
BRN 1071197
Stability Stable. Incompatible with oxidizing agents, bases, reducing agents, alkali metals. Store cool.
LogP 1.70
CAS DataBase Reference 109-80-8(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) 1,3-PROPANEDITHIOL
EWG's Food Scores 1
FDA UNII R4LUJ82U52
NIST Chemistry Reference 1,3-Propanedithiol(109-80-8)
EPA Substance Registry System 1,3-Propanedithiol (109-80-8)
UNSPSC Code 12352105
NACRES NA.22

Safety

Hazard Codes :Xi
Risk Statements :36/37/38
Safety Statements :26-24/25
RIDADR :3336
WGK Germany :3
RTECS :TZ2585500
F :13
TSCA :Yes
HazardClass :6.1
PackingGroup :III
HS Code :29309070
Toxicity :LD50 orally in Rabbit: > 50 - 300 mg/kg

NFPA 704:

	2
1		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H226-H301-H315
Precautionary statements P210-P233-P240-P241-P301+P310-P303+P361+P353

1,3-Dimercaptopropane Price More Price(4)

Brand: Sigma-Aldrich(India)
Product number: P50609
Product name : 1,3-Propanedithiol
Purity: 99%
Packaging: 5G
Price: ₹1948.5
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: P50609
Product name : 1,3-Propanedithiol
Purity: 99%
Packaging: 25G
Price: ₹3951.13
Updated: 2022/06/14
Buy: Buy

Brand: TCI Chemicals (India)
Product number: P0763
Product name : 1,3-Propanedithiol
Purity: min. 97.0 %
Packaging: 25ML
Price: ₹4300
Updated: 2022/05/26
Buy: Buy

Brand: TCI Chemicals (India)
Product number: P0763
Product name : 1,3-Propanedithiol
Purity: min. 97.0 %
Packaging: 100ML
Price: ₹14100
Updated: 2022/05/26
Buy: Buy

1,3-Dimercaptopropane Chemical Properties,Usage,Production

Application Used as a usual flavor.
Toxicity GRAS(FEMA)
Usage restriction FEMA：baked goods, meat product, soups, snack foods, sauces, candy and sugar cream: 0.2mg/kg.
Chemical Properties 1,3-Propanedithiol has a sulfur, meaty odor. FEMA indicates that total dithiol added to any food should not exceed 1.0 ppm.
Chemical Properties colourless to slightly yellow liquid
Occurrence Reported found in cooked or boiled beef.
Uses 1,3-Propanedithiol is used as a reagent in the preparation of thioketals and thioacetals. It acts as a flavoring agent. It is used as a precursor in the synthesis of cyclic dithioacetal (1,3-dithiane) derivatives of carbonyl compounds. It is involved in the preparation of diiron propanedithiolate hexacarbonyl by reacting reaction with triiron dodecacarbonyl. Further, it is used for the protection of aldehydes and ketones through their reversible formation of dithianes. In addition to this, it reacts with metal ions to form chelate rings.
Definition ChEBI: A dithiol that is propane substituted by thiol groups at positions 1 ans 3.
General Description Clear orange oil with a disagreeable odor.
Air & Water Reactions Highly flammable. Insoluble in water.
Reactivity Profile Organosulfides, such as 1,3-Dimercaptopropane, are incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Many of these compounds may liberate hydrogen sulfide upon decomposition or reaction with an acid. 1,3-Dimercaptopropane may react with oxidizers, bases, reducing agents and alkali metals.
Fire Hazard 1,3-Dimercaptopropane is combustible.