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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
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vapor density

2.62 (vs air)

Quality Segment

200

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

SMILES string

CC(O)CO

functional group

hydroxyl

InChI

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

InChI key

DNIAPMSPPWPWGF-UHFFFAOYSA-N

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.

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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

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