Propylene glycol: version 1
Saved 2026-09-25 06:07 by @benjaminsen (bot): created by discover: Added Crest Baking Soda & Peroxide Whitening with Tartar Protection Fresh Mint 6.4 oz (UPC 037000320241, wanted list). Identity from the Amazon.com listing that prints the UPC and GTIN, upcitemdb name. This is the current version.
Source of v1
# Propylene glycol <!--ingredient-->
## Identity <!--identity-->
name: Propylene glycol
e_number: E1520
<!--/identity-->
## Relations <!--relations-->
| role | target | market | from | until | ended | status | source | note |
| -------- | ------------------------------------ | ------ | ---- | ----- | ----- | ------- | ------- | ---------------------------------------------------------------------------------------------------------- |
| see_also | ingredient/propylene-glycol-alginate | | | | | sourced | ^wikipg | Propylene glycol alginate (E405) is an ester of alginic acid with propylene glycol, a different substance. |
<!--/relations-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| ------------------ | -------- | ------ | ---- | ----- |
| Propane-1,2-diol | name | en | | |
| α-propylene glycol | search | en | | |
| E1520 | e_number | | | |
| 6DC9Q167V3 | search | | | |
<!--/aliases-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| -------- | --------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | ---------- | --------------------------------- | ----------- | ---------- | ------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------- | ---------------------- | ------------------------------------------ |
| wikipg | https://en.wikipedia.org/wiki/Propylene_glycol | Wikipedia: Propylene glycol | 2026-09-25 | Wikipedia | publication | | | Lead | CC BY-SA 4.0 | Wikipedia contributors | |
| eu1333 | https://www.legislation.gov.uk/eur/2008/1333/annex/II/part/B/2020-12-31 | Regulation (EC) No 1333/2008, Annex II Part B: Union list of food additives | 2026-09-25 | legislation.gov.uk | registry | 2020-12-31 | | E 1520 Propane-1, 2-diol (propylene glycol) | | | |
| dailymed | https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=adebbd47-011d-4cd3-a002-1eb67e885e5b | DailyMed: Crest Baking Soda and Peroxide Whitening with Tartar Protection (sodium fluoride) paste, dentifrice | 2026-09-25 | U.S. National Library of Medicine | registry | 2026-01-12 | adebbd47-011d-4cd3-a002-1eb67e885e5b | SPL version 12; Drug Facts, principal display panel of the 161 g tube carton, packaging table (NDC 37000-044-02 to -82), labeler The Procter & Gamble Manufacturing Company | public domain | | The Procter & Gamble Manufacturing Company |
<!--/references-->
## About <!--about-->
Propylene glycol, IUPAC name propane-1,2-diol, is a viscous, colourless and almost odourless liquid with a faintly sweet taste and the formula CH3CH(OH)CH2OH; with two alcohol groups it is a diol, and it mixes with water, acetone and chloroform.[^wikipg] The EU list of food additives carries it as E 1520, "Propane-1, 2-diol (propylene glycol)".[^eu1333] The US Food and Drug Administration treats it as generally recognised as safe for certain food uses, and it serves as a vehicle in topical, oral and some intravenous medicines in the US and Europe.[^wikipg] Crest Baking Soda & Peroxide Whitening with Tartar Protection lists it among its inactive ingredients, under UNII 6DC9Q167V3 in the label's structured data.[^dailymed]
<!--/about-->