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Propylene glycol CAS#57-55-6

Propylene glycol CAS#57-55-6
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Chemical Name: Propylene glycol
CAS No.:57-55-6
Molecular Formula:C3H8O2
Sample: Available
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PRODUCT DESCRIPTION


Propylene glycol

Propylene Glycol USP/EP/FCC (CAS 57-55-6) is a high-purity (>99.5%) multi-functional liquid solvent and humectant compliant with global pharmacopeia standards. As a USP-grade pharmaceutical excipient, it serves as low-endotoxin (≤0.5EU/ml) injection solvent; in cosmetics, it acts as OECD 439-certified low-irritant humectant; for food processing, FCC-grade PG functions as antifreeze carrier (21 CFR 184.1666); while industrial applications leverage its low-toxicity antifreeze properties (-59°C, ASTM D1384). Technical documentation available.
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Propylene glycol Chemical Properties
Melting point-60 °C (lit.)
Boiling point187 °C (lit.)
density1.036 g/mL at 25 °C (lit.)
vapor density2.62 (vs air)
vapor pressure0.08 mm Hg ( 20 °C)
refractive indexn20/D1.432(lit.)
FEMA2940 | PROPYLENE GLYCOL
Fp225 °F
storage temp.Store at +5°C to +30°C.
solubilityChloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka14.49±0.20(Predicted)
formViscous Liquid
colorAPHA: ≤10
Specific Gravity1.038 (20/20℃)1.036~1.040
PH6-8 (100g/l, H2O, 20℃)
Odorat 100.00 %. odorless very slight alcoholic
Odor Typeodorless
Optical Rotation-0.11° (C=1.00g/100ml, CHCL3)
biological sourcesynthetic
explosive limit2.4-17.4%(V)
Water Solubilitymiscible
SensitiveHygroscopic
Merck14,7855
JECFA Number925
BRN1340498
Dielectric constant32.0
InChIKeyDNIAPMSPPWPWGF-UHFFFAOYSA-N
LogP-0.92
Surface tension35.44mN/m at 298.15K
CAS DataBase Reference57-55-6(CAS DataBase Reference)
NIST Chemistry ReferencePropylene glycol(57-55-6)
EPA Substance Registry SystemPropylene glycol (57-55-6)

Safety Information
Safety Statements24/25
WGK Germany1
RTECSTY2000000
Autoignition Temperature779 °F
TSCAYes
HS Code29053200
Hazardous Substances Data57-55-6(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 19400 - 36000 mg/kg LD50 dermal Rabbit 20800 mg/kg

Product Usage

Propylene Glycol (CAS 57-55-6) serves as a vital multifunctional ingredient across industries due to its high solubility and low toxicity. In pharmaceuticals, it acts as a USP-certified solvent for oral/transdermal formulations with low endotoxin levels (≤0.5 EU/ml). Cosmetic manufacturers utilize its OECD 439-certified moisturizing properties in lotions and serums for enhanced hydration. Food processing employs FCC-grade PG as a safe antifreeze carrier (21 CFR 184.1666), while industrial applications leverage its ASTM D1384-compliant antifreeze efficiency (-59°C freeze point). Technical portfolios available for sector-specific solutions.

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