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Merck

T2700

TWEEN® 20

meets EP testing specifications

Synonym(s):

Polyethylene glycol sorbitan monolaurate, Polyoxyethylenesorbitan monolaurate

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About This Item

CAS Number:
9005-64-5
UNSPSC Code:
12161900
NACRES:
NA.25
MDL number:
MFCD00165986

Product Name

TWEEN® 20, meets EP testing specifications

InChI

1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3

SMILES string

CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO

InChI key

HMFKFHLTUCJZJO-UHFFFAOYSA-N

agency

meets EP testing specifications

description

non-ionic

form

liquid

mol wt

~1228

composition

lauric acid, ≥40% (balance primarily myristic, palmoyic, and stearic acids)

refractive index

n20/D 1.468 (lit.)

CMC

0.059 mM

transition temp

cloud point 76 °C

density

1.095 g/mL at 25 °C (lit.)

HLB

16.7

Quality Level

200

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Application

Non-ionic detergent
TWEEN 20 has been used as a surfactant and has also been used for enzyme extraction.

General description

TWEEN® 20, also known as polysorbate 20, is a non-ionic detergent. It reduces the surface tension in solutions and thereby aids in uniform spreading of reagents. Tween 20 has a gentle action on cell lipids, preserves the integrity of cell surface antigens and aids in the staining of intracellular proteins.

Legal Information

TWEEN is a registered trademark of Croda International PLC

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

527.0 °F - Pensky-Martens closed cup

flash_point_c

275 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCH8817
MKCF8940
MKCB9855
MKCB1216V
MKBX5860V

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