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662631

Sigma-Aldrich

Poly(styrene-alt-maleic acid) sodium salt solution

13 wt. % in H2O

Synonyme(s) :

Maleic anhydride-styrene copolymer sodium salt, Styrene-maleic anhydride polymer sodium salt

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About This Item

Formule linéaire :
(C16H14Na2O8)n
Numéro CAS:
25736-61-2
Numéro MDL:
MFCD00217732
Code UNSPSC :
12162002
ID de substance PubChem :
24884596
Nomenclature NACRES :
NA.23
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Poids mol.

average Mw 350,000

Concentration

13 wt. % in H2O

Indice de réfraction

n20/D 1.362

Densité

1.070 g/mL at 25 °C

Chaîne SMILES 

[Na+].[Na+].OC(=O)\C=C\C(O)=O.[O-]C(=O)\C=C\C([O-])=O.C=Cc1ccccc1

InChI

1S/C8H8.C4H2O3/c1-2-8-6-4-3-5-7-8;5-3-1-2-4(6)7-3/h2-7H,1H2;1-2H

Clé InChI

WOLATMHLPFJRGC-UHFFFAOYSA-N

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Catégories apparentées

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H315,H318

Conseils de prudence

P280 - P305 + P351 + P338

Classification des risques

Eye Dam. 1 - Skin Irrit. 2

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCW9478
MKCW9336
MKCS3982
MKCR5898
MKCN8368

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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

N Sethi et al.
Contraception, 42(3), 337-347 (1990-09-01)
A newly developed male contraceptive, styrene maleic anhydride (SMA), was injected in the vas deferens of male rhesus monkeys for safety evaluation at the dose of 100 mg (contraceptive dose, CD), 250 mg (CD x 2.5) and 500 mg (CD
N K Lohiya et al.
International journal of andrology, 23(1), 36-42 (2000-01-13)
The feasibility of a spacing method for contraception, using Styrene Maleic Anhydride (SMA) as a vas occlusive agent, has been assessed in male langur monkeys. The vas deferens of 6 animals were occluded with 60 mg SMA in 120 microL
G D Guerra et al.
Journal of biomaterials science. Polymer edition, 4(6), 643-652 (1993-01-01)
The activation of human plasma prekallikrein (PKK) to kallikrein (KK), induced by the contact of blood with foreign materials, is a useful in vitro hemocompatibility test. Kallikrein is easily detected by its reaction with the chromogenic substrate H-D-Pro-Phe-Arg-pNA, which releases
K Verma et al.
Journal of reproduction and fertility, 63(2), 539-542 (1981-11-01)
An alternate co-polymer of styrene and maleic anhydride was dissolved in dimethylsulphoxide and injected into the vas deferens of rats. The polymer was retained in the vas deferens and the morphological changes detected were confined to the mucosa. When the
S K Guha et al.
Contraception, 32(1), 109-118 (1985-07-01)
A new male method of contraception by injecting a polymer, styrene-maleic anhydride (SMA), into the lumen of the vas deferens has been studied on rhesus monkeys. The polymer has the dual feature that it can occlude the vas deferens lumen
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 réponse

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 réponse

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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