CAS No. 504-63-2
EC No. 207-997-3
Synonyms Propane-1,3-diol; Propanediol; 1,3-PDO; 1,3-Propanediol; bio-1,3-Propanediol


1,3-Propanediol can act as multipurpose ingredient: emollient, humectant, booster, solvent, viscosity enhancer and carrier for actives.

It is a high purity ingredient 100% from renewable sources GMO-free and an ideal especially in Ecocert/Cosmos products and formulations.

Pure 1,3-Propanediol as a pH close to 7 and even at concentration higher than 70% ensures absence of skin irritation or sensitization.

1,3-Propanediol is made from natural glycerol and is an excellent natural alternative to petroleum-based glycols (propylene glycol, butylene glycol or methylpropanediol) and glycerin. bio-Propanediol is also miscible with the majority of glycols and alcohols, as well with water.

Compared to standard glycols 1,3-Propanediol gives better performance both in skin moisturizing (no tackiness and filming, soft feeling) and hair moisturizing (higher water absorption, increased smoothness and softness).

1,3-Propanediol shows a synergic effect in combination with glycerin with a long lasting moisturizing effect using a combination on both.


  • Ecocert: certified
  • Cosmos: approved
  • Nature: allowed
  • RSPO: available


  • 100% from renewable sources
  • GMO-free
  • excellent booster of preservative systems
  • improve moisturizing efficiency
  • absence of skin irritation or sensitization
  • excellent sensorial profile


  • emollient
  • humectant
  • solvent
  • botanical extraction
  • viscosity enhancer
  • carrier for actives
  • booster


  • Cosmetics
    1. skin care
    2. make up
    3. hair care
    4. deodorant
    5. toiletries
    6. cleansers
    7. sun care
    8. baby care
  • Fragrances
  • Pharmaceuticals
  • Natural extracts

Packaging & Shelf Life:

Drums 25 kg net
Drums 200 kg net
IBC 1000 kg net

Under proper storage conditions the shelf life is 24 months.

Health & Safety:

Detailed information on the product can be found in our Material Safety Data Sheet.


1,3-Propanediol (CAS 504-63-2)

CAS 504-63-2 is also called bio-Propanediol. Connect Chemicals can provide you with this specialty chemical as a competent Partner for chemicals with many different uses in different kinds of industries. CAS 504-63-2 or bio-Propanediol can act as a multipurpose ingredient. For example, it can be used as an emollient, humectant, booster, solvent, viscosity enhancer and carrier for actives.

bio-Propanediol (CAS 504-63-2) is certified under COSMOS, REACH, RSPO-free, Natrue, ECOCERT. 1,3-Propanediol (CAS 504-63-2) produced by Glory Biomaterial and distributed by Connect Chemicals, is the only COSMOS, RSPO and GMO-free compliant Propanediol in the world.


The specifics and uses of 1,3-Propanediol (CAS 504-63-2) as a specialty chemical

1,3-Propanediol (CAS 504-63-2) is made from natural glycerol. It’s an excellent alternative to petroleum-based glycols like propylene glycol, butylene glycol or methylpropanediol, but also to glycerin. It is miscible with water and the majority of glycols and alcohols, but compared to standard glycols, it gives a better moisturizing performance.

For example, in skin products it prevents tackiness and filming and gives a soft feeling instead, while in hair products it helps maintain a higher water absorption and increases the smoothness and softness of the hair. When used in combination with glycerin it shows a synergic effect with a long lasting moisturizing effect.

The 1,3-Propanediol (CAS 504-63-2) we of Connect Chemicals offer is a high purity ingredient. It’s 100% from renewable sources that are GMO free, which means that it does not contain any elements of genetic manipulation. With a pH at close to 7 bio-Propanediol (CAS 504-63-2) ensures an absence of skin irritation in cosmetic products even when used at a concentration of 70% or higher.

Due to its positive qualities, bio-Propanediol (CAS 504-63-2) is certified for use in organic and natural cosmetics by several companies, such as Ecocert, Cosmos, Natrue, and RSPO. Apart from cosmetics, bio-Propanediol (CAS 504-63-2) can also be found in a variety of fragrances, in pharmaceuticals and in natural extracts.


1,3-Propanediol (CAS 504-63-2) offered by your global quality provider

We of Connect Chemicals are your quality provider for 1,3-Propanediol (CAS 504-63-2) and also the official distributor of Glory Biomaterial for Europe, North and South America. A network of facilities on those continents as well as in Asia, combined with a culturally sensitive team to smooth over potential differences in business cultures, ensure that we can act on a global level with competence. In addition, we take care to comply with highest security standards for the quality of our products as well as for our safety protocols.

For health and safety information on 1,3-Propanediol (CAS 504-63-2), please refer to our Material Safety Data Sheet.