1,2-Pentanediol
-
1,2-Pentanediol
structure -
-
CAS No:
5343-92-0
-
Formula:
C5H12O2
-
Chemical Name:
1,2-Pentanediol
-
Synonyms:
1,2-Pentanediol;1,2-Dihydroxypentane;(±)-Pentane-1,2-diol;NSC 513;1,2-Pentylene glycol;Hydrolite 5;Diol PD;91049-43-3
- Categories:
-
CAS No:
Characteristics
40.5
0.2
Clear colorless to light yellow Liquid
0.9691 g/cm3 @ Temp: 24 °C
50.86°C (estimate)
210-211 °C
104 °C
1.443
Micible with water.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Safety Information
NONH for all modes of transport
1
36/38
24/25
SA0455000
P264, P280, P301+P310, P302+P352, P305+P351+P338, P310, P321, P331, P332+P313, P337+P313, P362, P405, P501
H304
|Danger|H304 (50%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]|P264, P280, P301+P310, P305+P351+P338, P310, P331, P337+P313, P405, and P501|Aggregated GHS information provided by 954 companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
1,2-Pentanediol Use and Manufacturing
Its preparation method uses 1-pentene, hydrogen peroxide and formic acid as raw materials, and its molar ratio is 1:1.5:4. The reaction equilibrium mixture is formed by the following procedure: slowly add 1-pentene and hydrogen peroxide (70%) to the formic acid at 40~55℃ at the same time, after the addition, stir the mixture at 55℃ for 1h, Move into the circulating reactor, which has a circulating pump and overflow siphon, is heated to 55°C and circulates, and then 1-pentene and formic acid are added, and hydrogen peroxide is added from the other. When an exothermic reaction occurs, the temperature is allowed to rise to 62-63°C, and these components are added at a certain ratio and speed. The equilibrium operation is controlled by a circulating thermostat for about 8 hours. The reaction stops and a large amount of 1, 2-pentanediol is obtained. The formic acid ester is distilled under reduced pressure to remove formic acid and water, and the residue obtained is added with 25% NaOH solution for hydrolysis, solvent extraction and distillation to obtain 1, 2-pentanediol, the yield can reach 91%, m p. 96~98℃/1.3kPa.
1,2-pentanediol is an important intermediate of the fungicide propiconazole.
1,2-Pentanediol: ACTIVE|PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.
EPA Safer Chemical Functional Use Classes -> Solvents|Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
Computed Properties
Molecular Weight:104.15
XLogP3:0.2
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:3
Exact Mass:104.083729621
Monoisotopic Mass:104.083729621
Topological Polar Surface Area:40.5
Heavy Atom Count:7
Complexity:37.1
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Drug Function and Efficacy
Moisturizer, solvent, and preservative
Recommended Suppliers of 1,2-Pentanediol
-
InquiryCAS No.: 5343-92-0Grade: Cosmetic/Food/Pharmaceutical GradeContent: 0.00%
-
CN
5 YRS
Business licensed Certified factoryManufactory Supplier of Agrochemicals,Daily Chemicals,Catalysts & Chemical Auxiliary Agents,Extract,Inorganic Chemicals,Organic Intermediate,Pigment & Dyestuff,Polymer,Flavour & Fragrance,Basic Organic Chemicals,PharmaceuticalInquiryCAS No.: 5343-92-0Content: 0.00% -
InquiryCAS No.: 5343-92-0Grade: Cosmetics GradeContent: 99%
-
CN
5 YRS
Business licensedTrader Supplier of PVC resin,pvc paste resin,melamine -
InquiryUnit Price: $3400-4000 /MT FOBCAS No.: 5343-92-0Grade: Pharmaceutical GradeContent: 99%
Learn More Other Chemicals
-
Perfluoro(1,3-dimethylcyclohexane)
335-27-3
-
Diisononyl adipate
33703-08-1
-
3,5,5-Trimethyl-1-hexanol
3452-97-9
-
Perfluorohexane Formula
355-42-0
-
Farnesane Formula
3891-98-3
-
2-Butyl-1-octanol Formula
3913-02-8
-
DIBUTYLOCTYL MALATE Structure
399551-19-0
-
Perfluorooctyl bromide Structure
423-55-2
-
What is Acryloxypropyltrimethoxysilane
4369-14-6
-
What is (±)-2,2,4,4,6,8,8-Heptamethylnonane
4390-04-9