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Merck

16033

1,2-Propanediol

meets analytical specification of Ph. Eur., BP, USP, ≥99.5%

Sinónimos:

1,2-PDO, Propylene glycol

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About This Item

Fórmula lineal:
CH3CH(OH)CH2OH
Número CAS:
57-55-6
Peso molecular:
76.09
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
57647543
EC Number:
200-338-0
Beilstein/REAXYS Number:
1340498
MDL number:
MFCD00064272

Nombre del producto

1,2-Propanediol, meets analytical specification of Ph. Eur., BP, USP, ≥99.5%

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

InChI

1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

SMILES string

CC(O)CO

vapor density

2.62 (vs air)

vapor pressure

0.08 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

779 °F

quality

meets analytical specification of Ph. Eur., BP, USP

shelf life

24 mo.

expl. lim.

12.5 %

impurities

acidic reac. impurities, complies
 organic volatile impurities, complies (GC)
 oxidizing substances, complies
 reducing matter, complies
 residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.002% free alkali (as NaOH)
≤0.003% free acid (as CH3COOH)
≤0.2% water (Karl Fischer)

ign. residue

≤0.005% (as SO4)

refractive index

n20/D 1.431-1.433
n20/D 1.432 (lit.)

bp

187 °C (lit.)

mp

−60 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

suitability

complies for appearance of solution

functional group

hydroxyl

Quality Level

200

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Application

1,2-Propanediol may be employed as a cryoprotective agent for the preservation (by cooling to sub-zero temperatures) of human embryos and and oocytes (human and mouse).

General description

1,2-Propanediol is an 1,2-alkanediol. It can be obtained from glycerol, via hydrogenolysis in the presence of Ru/C and Amberlyst ion-exchange resins.
1,2-Propanediol is an important petrochemical that can be prepared by the hydrogenolysis of glycerol. It is mainly used as a cryoprotectant for biological samples and also as an additive in food, cosmetic and pharmaceutical industries.

Other Notes

The article number 16033-4X5L will be discontinued. Please order the single bottle 16033-5L which is physically identical with the same exact specifications.
The article number 16033-6X1L will be discontinued. Please order the single bottle 16033-1L which is physically identical with the same exact specifications.
The article number 16303-4X2.5L-R will be discontinued. Please order the single bottle 16303-2.5L-R which is physically identical with the same exact specifications.

Packaging

bottled under inert gas

Clase de almacenamiento

10 - Combustible liquids

wgk

WGK 1

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
SDBB6925
SDBB6486
SDBB3396
SDBB2967
SDBB2966

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Aqueous phase hydrogenolysis of glycerol to 1, 2-propanediol without external hydrogen addition.
Roy D, et al.
Catalysis Today, 156(1), 31-37 (2010)
B Lassalle et al.
Fertility and sterility, 44(5), 645-651 (1985-11-01)
Eighty-five human embryos fertilized in vitro were frozen and thawed with 1,2 propanediol as a cryoprotective agent. The effects of viability of in vitro culture duration, stage, and morphologic appearance of embryos were examined after thawing. Survival was higher for
Glycerol hydrogenolysis to 1, 2-propanediol catalyzed by a heat-resistant ion-exchange resin combined with Ru/C.
Miyazawa T, et al.
Applied Catalysis A: General, 329, 30-35 (2007)
Yusha Imtiaz et al.
Nanomaterials (Basel, Switzerland), 10(8) (2020-08-23)
Polysaccharides have been shown to have immunomodulatory properties. Modulation of the immune system plays a crucial role in physiological processes as well as in the treatment and/or prevention of autoimmune and infectious diseases. Cellulose nanocrystals (CNCs) are derived from cellulose
Mohammad Chand Ali et al.
Talanta, 203, 16-22 (2019-06-17)
The efficient extraction of natural products from biomass is deemed an essential area of interest using green technology in the pharmaceutical and biochemical industries. In recent years, deep eutectic solvents (DESs) have been paying broad interest as compatible, safe, and
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