Record Information
Creation date2010-04-08 22:09:28 UTC
Update date2018-05-28 23:29:32 UTC
Primary IDFDB011098
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameGuar gum
DescriptionIt is used in foods as emulsifier, stabiliser, thickener, gelling agent, formulation aid and firming agent; ice-cream stabiliser, used to improve the yield of curds in soft cheese, to increase the yield of doughs and baked products, as a binder and lubricant in sausages, and as thickener or viscosity control agent in beverages, salad dressings and relishes Chemically, guar gum is a polysaccharide composed of the sugars galactose and mannose. The backbone is a linear chain of ? 1,4-linked mannose residues to which galactose residues are 1,6-linked at every second mannose, forming short side-branches.; Guar gum has been considered of interest with regards to both weight loss and diabetic diets. It is a thermogenic substance. Moreover, its low digestibility lends its use in recipes as a filler, which can help to provide satiety, or slow the digestion of a meal, thus lowering the glycemic index of that meal. In the late 1980s, guar gum was used and heavily promoted in several weight loss products. The U.S. Food and Drug Administration eventually recalled these due to reports of esophageal blockage from insufficient fluid intake, after one brand alone caused at least 10 users to be hospitalized and a death. For this reason, guar gum is no longer approved for use in over-the-counter weight loss aids in the United States. Moreover, a meta-analysis that combined the results of 11 randomized controlled trials found that guar gum supplements were not effective in reducing body weight.; Guar gum is a water-soluble fiber that acts as a bulk forming laxative, and as such, it is claimed to be effective in promoting regular bowel movements and relieve constipation and chronic related functional bowel ailments such as diverticulosis, Crohn's disease, colitis and irritable bowel syndrome, among others. The increased mass in the intestines stimulates the movement of waste and toxins from the system, which is particularly helpful for good colon health, because it speeds the removal of waste and bacteria from the bowel and colon. In addition, because it is soluble, it is also able to absorb toxic substances (bacteria) that cause infective diarrhea.; Guar gum is more soluble than locust bean gum and is a better emulsifier as it has more galactose branch points. Unlike locust bean gum, it is not self-gelling. However, either borax or calcium can cross-link guar gum, causing it to gel. In water it is nonionic and hydrocolloidal. It is not affected by ionic strength or pH, but will degrade at pH extremes at temperature (e.g. pH 3 at 50°C). It remains stable in solution over pH range 5-7. Strong acids cause hydrolysis and loss of viscosity, and alkalies in strong concentration also tend to reduce viscosity. It is insoluble in most hydrocarbon solvents.; Guar gum, also called guaran, is a galactomannan. It is primarily the ground endosperm of guar beans. The guar seeds are dehusked, milled and screened to obtain the guar gum. It is typically produced as a free flowing, pale, off-white colored, coarse to fine ground powder.
CAS Number9000-30-0
Anhydrous, tacrolimusHMDB
Anhydrous tacrolimusHMDB
Tacrolimus anhydrousHMDB
Tacrolimus, anhydrousHMDB
Fujisawa brand OF tacrolimusHMDB
Cilag brand OF tacrolimusHMDB
Janssen brand OF tacrolimusHMDB
Burtonite V-7-Edb_source
Cyanopsis gumdb_source
Dealea TPIdb_source
Guar flourdb_source
Predicted Properties
Water Solubility0.004 g/LALOGPS
pKa (Strongest Acidic)9.96ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count11ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area178.36 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity215.62 m³·mol⁻¹ChemAxon
Polarizability88.14 ųChemAxon
Number of Rings4ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC44H69NO12
IUPAC name(1R,9S,12S,13R,14S,17R,18Z,21S,23S,24R,25S,27R)-1,14-dihydroxy-12-[(1E)-1-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl]-23,25-dimethoxy-13,19,21,27-tetramethyl-17-(prop-2-en-1-yl)-11,28-dioxa-4-azatricyclo[^{4,9}]octacos-18-ene-2,3,10,16-tetrone
InChI IdentifierInChI=1S/C44H69NO12/c1-10-13-31-19-25(2)18-26(3)20-37(54-8)40-38(55-9)22-28(5)44(52,57-40)41(49)42(50)45-17-12-11-14-32(45)43(51)56-39(29(6)34(47)24-35(31)48)27(4)21-30-15-16-33(46)36(23-30)53-7/h10,19,21,26,28-34,36-40,46-47,52H,1,11-18,20,22-24H2,2-9H3/b25-19-,27-21+/t26-,28+,29+,30-,31+,32-,33+,34-,36+,37-,38-,39+,40+,44+/m0/s1
Isomeric SMILES[H]\C(=C(\C)[C@@]1([H])OC(=O)[C@]2([H])CCCCN2C(=O)C(=O)[C@]2(O)O[C@@]([H])([C@]([H])(C[C@@]2([H])C)OC)[C@]([H])(C[C@@]([H])(C)C\C(C)=C([H])\[C@@]([H])(CC=C)C(=O)C[C@]([H])(O)[C@@]1([H])C)OC)[C@]1([H])CC[C@@]([H])(O)[C@@]([H])(C1)OC
Average Molecular Weight804.0182
Monoisotopic Molecular Weight803.481976677
Description Belongs to the class of organic compounds known as macrolide lactams. These are cyclic polyketides containing both a cyclic amide and a cyclic ester group.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassMacrolide lactams
Sub ClassNot Available
Direct ParentMacrolide lactams
Alternative Parents
  • Macrolide lactam
  • Alpha-amino acid ester
  • Macrolide
  • Alpha-amino acid or derivatives
  • Cyclohexanol
  • Oxane
  • Piperidine
  • Cyclic alcohol
  • Tertiary carboxylic acid amide
  • Cyclic ketone
  • Secondary alcohol
  • Carboxamide group
  • Carboxylic acid ester
  • Hemiacetal
  • Ketone
  • Lactam
  • Lactone
  • Organoheterocyclic compound
  • Azacycle
  • Carboxylic acid derivative
  • Oxacycle
  • Dialkyl ether
  • Ether
  • Monocarboxylic acid or derivatives
  • Organopnictogen compound
  • Alcohol
  • Organic oxygen compound
  • Carbonyl group
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External DescriptorsNot Available
Physiological effect

Health effect:



Route of exposure:

Biological location:


Industrial application:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
EI-MS/GC-MSNot Available
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-0gvo-0000192300-507c8bb18631e452a484Spectrum
MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-066r-0000119030-65296f545a06c11d017bSpectrum
MS/MSLC-MS/MS Spectrum - Linear Ion Trap , positivesplash10-001i-0000009120-d1952a63d681e01b0eecSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f79-0200001930-3416d86dc0d61354fd20Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014u-1400003900-1705b8ca1b5858186d96Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00rf-5200008900-20683c9798305f220c92Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0000000490-b536a515071aa91b3d99Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0uei-0000000920-face0da2f9f0fced4ae7Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4r-3000001900-75ecdc7e12ec9d9989ccSpectrum
NMRNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDFYR86-X:FYR86-X
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDGuar_gum
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference