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2D Structure
Also known as: Sodium alginate, 9005-38-3, Natriumglucuronat, Schembl20919851, Ft-0621962, Ft-0670280
Molecular Formula
C6H9NaO7
Molecular Weight
216.12  g/mol
InChI Key
MSXHSNHNTORCAW-UHFFFAOYSA-M

Salts and esters of ALGINIC ACID that are used as HYDROGELS; DENTAL IMPRESSION MATERIALS, and as absorbent materials for surgical dressings (BANDAGES, HYDROCOLLOID). They are also used to manufacture MICROSPHERES and NANOPARTICLES for DIAGNOSTIC REAGENT KITS and DRUG DELIVERY SYSTEMS.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
sodium;3,4,5,6-tetrahydroxyoxane-2-carboxylate
2.1.2 InChI
InChI=1S/C6H10O7.Na/c7-1-2(8)4(5(10)11)13-6(12)3(1)9;/h1-4,6-9,12H,(H,10,11);/q;+1/p-1
2.1.3 InChI Key
MSXHSNHNTORCAW-UHFFFAOYSA-M
2.1.4 Canonical SMILES
C1(C(C(OC(C1O)O)C(=O)[O-])O)O.[Na+]
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Alginate

2. Alginate, Barium

3. Alginate, Calcium

4. Alginate, Copper

5. Alginate, Potassium

6. Alginate, Sodium

7. Alginate, Sodium Calcium

8. Alginates

9. Alginic Acid, Barium Salt

10. Alginic Acid, Calcium Salt

11. Alginic Acid, Copper Salt

12. Alginic Acid, Potassium Salt

13. Alginic Acid, Sodium Salt

14. Alloid G

15. Barium Alginate

16. Calcium Alginate

17. Calcium Alginate, Sodium

18. Calginat

19. Copper Alginate

20. Kalrostat

21. Kalrostat 2

22. Kaltostat

23. Poly(mannuronic Acid), Sodium Salt

24. Potassium Alginate

25. Sodium Alginate

26. Sodium Calcium Alginate

27. Vocoloid

28. Xantalgin

2.2.2 Depositor-Supplied Synonyms

1. Sodium Alginate

2. 9005-38-3

3. Natriumglucuronat

4. Schembl20919851

5. Ft-0621962

6. Ft-0670280

7. Sodium;3,4,5,6-tetrahydroxyoxane-2-carboxylate

2.3 Create Date
2005-09-18
3 Chemical and Physical Properties
Molecular Weight 216.12 g/mol
Molecular Formula C6H9NaO7
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count7
Rotatable Bond Count1
Exact Mass216.02459690 g/mol
Monoisotopic Mass216.02459690 g/mol
Topological Polar Surface Area130 Ų
Heavy Atom Count14
Formal Charge0
Complexity210
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count5
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Drug and Medication Information
4.1 Therapeutic Uses

Mesh Heading: Radiation-protective agents, hemostatics, biocompatible materials

National Library of Medicine, SIS; ChemIDplus Record for Algin (9005-38-3). Available from, as of April 17, 2006: https://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp


EXPTL USE: Alginate therapy (20 mg Na alginate; 40 mg manucol SS/LD/2) applied immediately after single oral contaminantion with radiostrontium (0.2-0.4 uCi/mL) reduced skeletal retention of radiostrontium.

KADIC M; VETERINARIA (SARAJAVO) 24 (2) 219-34 (1975)


EXPTL USE: Alginated bread fed to mice increased (85)Sr concentration in blood, decreased urinary excretion and increased fecal excretion.

VAN DER BORGHT ET AL; MINER METAB LAB, STUDIECENT KERNENERG CENT ETUDE ENERG NUCL, MOL, BELG


EXPTL USE: Absorption in mice of strontium, barium, and radium was depressed more than that of calcium by alginates tested, include sodium alginate.

HUMPHREYS ET AL; INT CONF STRONTIUM METAB (PAP) 2ND; VOL CONF-720818, 1973, 309-314


For more Therapeutic Uses (Complete) data for ALGIN (8 total), please visit the HSDB record page.


5 Pharmacology and Biochemistry
5.1 Absorption, Distribution and Excretion

Apparently ... not decomposed or absorbed appreciably when ingested ...

Gosselin, R.E., H.C. Hodge, R.P. Smith, and M.N. Gleason. Clinical Toxicology of Commercial Products. 4th ed. Baltimore: Williams and Wilkins, 1976., p. II-155


When propyleneglycol (14)C alginate or (14)C propylene glycol alginate ... dosed to mice, unhydrolyzed ester and alginate residue ... unabsorbed from GI tract; but any hydrolyzed propyleneglycol ... absorbed ... metabolized and eliminated ... single dose ... 1 g/kg ... excreted ... feces ... 5 days ...

The Chemical Society. Foreign Compound Metabolism in Mammals Volume 3. London: The Chemical Society, 1975., p. 343


... After a dose of 5 g/kg, traces of label were still present in rectum. Alginate prepared from laminaria digitata was unabsorbed by rats fed at a level of 10% of their daily diet.

The Chemical Society. Foreign Compound Metabolism in Mammals Volume 3. London: The Chemical Society, 1975., p. 343