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Merck
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Key Documents

Safety Information

Z512141

Sigma-Aldrich

Serrated natural rubber septa

white rubber, bottom O.D. 23 mm, fits neck I.D., 20.5 mm, ST/NS: 24/40

Synonym(s):

Natural Rubber Seal

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Select a Size

50 ML
CN¥2,290.18
5 X 50 ML
CN¥9,122.20

CN¥2,290.18

Estimated to ship onApril 07, 2025Details

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50 ML
CN¥2,290.18
5 X 50 ML
CN¥9,122.20

About This Item

UNSPSC Code:
41121800
eCl@ss:
32119211
NACRES:
NB.35

CN¥2,290.18

Estimated to ship onApril 07, 2025Details

material

white rubber

usage

ST/NS: 24/40

feature

fits neck I.D. 20.5 mm

packaging

package of 100

bottom O.D.

23 mm

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Show Differences

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This Item
P1415H7782H7033
杂交溶液 for Northern and Southern blotting, liquid (2x concentrate)

H7140

杂交溶液

预杂交溶液 for Northern and Southern blotting, liquid (2x concentrate)

P1415

预杂交溶液

杂交溶液

H7782

杂交溶液

PerfectHyb™ Plus杂交缓冲液 for Northern and Southern blotting, solution

H7033

PerfectHyb™ Plus杂交缓冲液

form

liquid (2x concentrate)

form

liquid (2x concentrate)

form

liquid

form

solution

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

room temp

foreign activity

DNAses, RNases, NICKases, endonucleases, and exonucleases, none detected

foreign activity

DNAses, RNases, NICKases, endonucleases, and exonucleases, none detected

foreign activity

-

foreign activity

-

General description

Closure has a turnover flange molded to grip outside of container neck, promoting a double seal in conjunction with annular serrations on a hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.
Note: For extra security when using large bore transfer needles, fasten septum to bottle or flask opening with a wrap-it tie. See ties and accessory tool listings on next page.
Natural rubber septa/sleeve stoppers are used as temporary closures in chemistry, pharmaceuticals, research and development, and biology. These commercially available septa are developed for general applications and are mainly used in labs as closures for glassware, tubes, and cannulation of air-sensitive chemicals.

Features and Benefits

  • Precision fit
  • Non-contaminating
  • Safety and performance

Regulatory Information

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