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Dokumenty

A9793

Sigma-Aldrich

Agarose

High EEO

Synonim(y):

3,6-Anhydro-α-L-galacto-β-D-galactan, Agarose HE

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About This Item

Numer CAS:
9012-36-6
Numer WE:
232-731-8
Numer MDL:
MFCD00081294
Kod UNSPSC:
41105317
Identyfikator substancji w PubChem:
24891497
NACRES:
NA.21

Poziom jakości

200

typ

Type III-A

Postać

powder

zanieczyszczenia

≤7% water (loss on drying)

popiół

≤1.1%

mętność

≤4 NTU (1.5% gel)

EEO

0.23-0.26

temp. przejścia

gel point 36 °C ±1.5 °C (1.5% gel)

siła żelu

≥750 g/cm2 (1% gel)

ślady anionów

sulfate (SO42-): ≤0.25%

InChI

1S/C24H38O19/c25-1-5-9(27)11(29)12(30)22(38-5)41-17-8-4-36-20(17)15(33)24(40-8)43-18-10(28)6(2-26)39-23(14(18)32)42-16-7-3-35-19(16)13(31)21(34)37-7/h5-34H,1-4H2/t5-,6-,7+,8+,9+,10+,11+,12-,13+,14-,15+,16-,17-,18+,19+,20+,21-,22+,23+,24+/m1/s1

Klucz InChI

MJQHZNBUODTQTK-WKGBVCLCSA-N

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Komentarz do analizy

The following is a list of properties associated with our agaroses:
Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present.
Gel strength - the force that must be applied to a gel to cause it to fracture.
Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature.
Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.

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Kod klasy składowania

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Gloves, type N95 (US)

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Certyfikaty analizy (CoA)

Lot/Batch Number
0000396739
0000396739
0000319145
0000319175
0000319144

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