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Merck

16033

1,2-propanediol

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

Synonyme(s) :

Propylène glycol

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A propos de cet article

Formule linéaire :
CH3CH(OH)CH2OH
Numéro CAS:
57-55-6
Poids moléculaire :
76.09
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
57647543
EC Number:
200-338-0
Beilstein/REAXYS Number:
1340498
MDL number:
MFCD00064272
Assay:
≥99.5%
Form:
liquid

Principaux documents

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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.)

Quality Level

200

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

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Catégories apparentées

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.

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).

Packaging

bottled under inert gas

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.

Classe de stockage

10 - Combustible liquids

flash_point_f

219.2 °F - closed cup

flash_point_c

104 °C - closed cup

ppe

Eyeshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
SDBB6925
SDBB6486
SDBB3396
SDBB2967
SDBB2966

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Aqueous phase hydrogenolysis of glycerol to 1, 2-propanediol without external hydrogen addition.
Roy D, et al.
Catalysis Today, 156(1), 31-37 (2010)
D A Gook et al.
Human reproduction (Oxford, England), 8(7), 1101-1109 (1993-07-01)
Human and mouse oocytes were cryopreserved by a slow freeze, rapid thaw method, using propanediol (PROH) as the cryoprotectant. A simulated cryopreservation was also included in the study to detect the level of damage attributable to the PROH alone. Comparison
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)
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
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
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