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Alcohol and glycol solvents

1,2-Pentanediol

Also known as Pentylene glycol, 1,2-Dihydroxypentane, Pentane-1,2-diol

CAS 5343-92-0Formula C5H12O2Molar mass 104.15 g/molEC 226-285-3
GHS signal word: Danger. Pictograms: Corrosive, Serious health hazard 52 suppliers listed
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1,2-Pentanediol chemical structure, C5H12O2, CAS 5343-92-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5343-92-0
Formula
C5H12O2
Molar mass
104.15 g/mol
Physical form
Liquid
HS code
290539
Category
Alcohol and glycol solvents
Illustrative photo, 25 litre white jerry cans of liquid in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 1,2-Pentanediol?

Plain description, key identifiers and synonyms

1,2-Pentanediol is a chemical substance with the molecular formula C5H12O2 and a molar mass of 104.15 g/mol. Its CAS registry number is 5343-92-0. The IUPAC name is pentane-1,2-diol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
pentane-1,2-diol
CAS number
5343-92-0 CAS number cross-checked
EC number
226-285-3
Molecular formula
C5H12O2
UNII
50C1307PZG
MDL number
MFCD00010736
INCI name
PENTYLENE GLYCOL
InChIKey
WCVRQHFDJLLWFE-UHFFFAOYSA-N
InChI
InChI=1S/C5H12O2/c1-2-3-5(7)4-6/h5-7H,2-4H2,1H3
SMILES (canonical and isomeric)
CCCC(CO)O

Synonyms

  • Pentylene glycol
  • 1,2-Dihydroxypentane
  • Pentane-1,2-diol
  • (+/-)-1,2-Pentanediol
  • (R)-1,2-Pentanediol
  • (+/-)-Pentane-1,2-diol, 1,2-Dihydroxypentane, 1,2-Pentylene Glycol, Diol PD, Hydrolite 5, NSC 513
  • 1,a2-aPentanediol
  • 1,2-Pentanediol, 96%
  • 1,2-Pentanediol,(2S)-
  • 3-01-00-02191 (Beilstein Handbook Reference)
  • Wcvrqhfdjllwfe-uhfffaoysa-
  • (S)-1,2-PENTANEDIOL, (2S)-1,2-Pentanediol, (2S)-Pentane-1,2-diol, (S)-Pentane-1,2-diol

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Liquidexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
104.15 g/molcalc.
Exact mass
104.0837 Dacalc.
LogP (octanol/water)
0.14calc.
Topological polar surface area
40.46 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H304May be fatal if swallowed and enters airways.
  • H318Causes serious eye damage.
Precautionary statements (8)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P331Do not induce vomiting.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

1,2-Pentanediol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 52 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

52 suppliers in 9 countries

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1,2-Pentanediol price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Other, Intermediate.

Use classes: Solvents, Safer Chemical Classes.

Cosmetic ingredient, INCI name PENTYLENE GLYCOL(skin conditioning, solvent)

Functional uses

  • Fragrance
  • Softener and conditioner
  • Solvent

Cosmetic functions

  • Skin conditioning
  • Solvent

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • Safer Choice ingredient list (USA)
  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Added by a premanufacture notice

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 1,2-Pentanediol is traded under.

HS 2905.39Indicative HS code

Diols, other

World exports in 2024
$1.92B
−3.5% vs 2023, imports $2B
2019 to 2024
Top exporters
  1. China22.3%
  2. United States17.9%
  3. Germany16.1%
Top importers
  1. Germany12.0%
  2. China11.3%
  3. South Korea10.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 1,2-Pentanediol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1,2-Pentanediol, based on the data on this page

What is 1,2-Pentanediol?

1,2-Pentanediol is a chemical substance with the molecular formula C5H12O2 and a molar mass of 104.15 g/mol. Its CAS registry number is 5343-92-0. The IUPAC name is pentane-1,2-diol.

What is the CAS number of 1,2-Pentanediol?

The CAS registry number of 1,2-Pentanediol is 5343-92-0.

What is the molecular formula and weight of 1,2-Pentanediol?

The molecular formula of 1,2-Pentanediol is C5H12O2 and its molar mass is 104.15 g/mol.

What is 1,2-Pentanediol used for?

Industrial uses: Other, Intermediate. Use classes: Solvents, Safer Chemical Classes.

Is 1,2-Pentanediol hazardous?

1,2-Pentanediol carries the GHS signal word "Danger". Main hazards: may be fatal if swallowed and enters airways, causes serious eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1,2-Pentanediol?

1,2-Pentanediol is usually classified under HS code 290539 (Diols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 1,2-Pentanediol?

CompoundList lists 52 suppliers of 1,2-Pentanediol in China, Germany, India, United Kingdom and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy 1,2-Pentanediol in India?

6 suppliers in India list 1,2-Pentanediol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 1,2-Pentanediol?

Suppliers quote 1,2-Pentanediol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 1,2-Pentanediol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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