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Cas Database

7296-64-2

7296-64-2

Identification

  • Product Name:Galactitol,1,5-anhydro-1-C-phenyl-

  • CAS Number: 7296-64-2

  • EINECS:

  • Molecular Weight:180.158

  • Molecular Formula: C6H12O6

  • HS Code:

  • Mol File:7296-64-2.mol

Synonyms:β-D-Galactose;beta-D-galactose;β-D-galactopyranose;

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Safety information and MSDS view more

  • Signal Word:no data available

  • Hazard Statement:no data available

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

Supplier and reference price

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  • Manufacture/Brand:TRC
  • Product Description:β-D-Galactose
  • Packaging:50mg
  • Price:$ 1070
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  • Manufacture/Brand:Medical Isotopes, Inc.
  • Product Description:β-D-Galactose
  • Packaging:5 mg
  • Price:$ 610
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  • Manufacture/Brand:American Custom Chemicals Corporation
  • Product Description:BETA-D-GALACTOPYRANOSE 95.00%
  • Packaging:5MG
  • Price:$ 500.31
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Relevant articles and documentsAll total 52 Articles be found

Immobilization of β-galactosidase onto Sepharose and stabilization in room temperature ionic liquids

Singh, Natasha R.,Narinesingh, Dyer,Singh, Gurdial

, p. 19 - 27 (2010)

The hydrolysis of o-nitrophenyl-β-d-galactopyranoside (ONPG) by β-galactosidase immobilized on Sepharose CL-4B was investigated in five different ionic liquids (ILs), 1-butyl-3-methylimidazolium X-; [X = CF3SO3-, BF4-, PF6-, CH3SO4-and N(CN)2-]. Michaelis-Menten kinetic studies were conducted in phosphate buffer and in the five ionic liquids. For the immobilized enzyme in the ILs, the Km values were lower (0.36-1.2 mmol ONPG) while the Vmax values were higher (0.04-0.008 min- 1) compared to those in aqueous phosphate buffer suggesting a marked increase in the efficiency of the immobilized enzyme in the ionic liquid. For the free enzyme in the ionic liquids, the Km values, in general, were larger (0.45-4.96 mmol ONPG) than those of the immobilized enzyme in the ionic liquid. A postulated mechanism for the hydrolysis is suggested, involving interception of the intermediate oxonium ion species by the counter ion of the ionic liquid, thereby enabling the hydrolysis to occur at a faster rate.

Exopolysaccharide Produced by Probiotic Bacillus albus DM-15 Isolated From Ayurvedic Fermented Dasamoolarishta: Characterization, Antioxidant, and Anticancer Activities

Kalimuthu, Palanisamy,Ma, Yongkun,Mathivanan, Krishnamurthy,Rai, Amit Kumar,Saravanan, Kandasamy,Sathiyanarayanan, Ganesan,Sekar, Soundarapandian,Sudharsan, Kumaresan,Vinothkanna, Annadurai

, (2022/03/31)

An exopolysaccharide (EPS) was purified from the probiotic bacterium Bacillus albus DM-15, isolated from the Indian Ayurvedic traditional medicine Dasamoolarishta. Gas chromatography-mass spectrophotometry and nuclear magnetic resonance (NMR) analyses revealed the heteropolymeric nature of the purified EPS with monosaccharide units of glucose, galactose, xylose, and rhamnose. Size-exclusion chromatography had shown the molecular weight of the purified EPS as around 240 kDa. X-ray powder diffraction analysis confirmed the non-crystalline amorphous nature of the EPS. Furthermore, the purified EPS showed the maximum flocculation activity (72.80%) with kaolin clay and emulsification activity (67.04%) with xylene. In addition, the EPS exhibits significant antioxidant activities on DPPH (58.17 ± 0.054%), ABTS (70.47 ± 0.854%) and nitric oxide (58.92 ± 0.744%) radicals in a concentration-dependent way. Moreover, the EPS showed promising cytotoxic activity (20 ± 0.97 μg mL–1) against the lung carcinoma cells (A549), and subsequent cellular staining revealed apoptotic necrotic characters in damaged A549 cells. The EPS purified from the probiotic strain B. albus DM-15 can be further studied and exploited as a potential carbohydrate polymer in food, cosmetic, pharmaceutical, and biomedical applications.

Bioactive oleanane-type saponins from Hylomecon Japonica

Li, Fei,Ma, Chun-Liu,Qu, Ming-Hui,Wang, Guang-Shu,Wang, Yi-Xiao,Wu, Si-Tong,Yu, Bai-Hong

, (2021/07/19)

Six undescribed oleanane-type saponins, named as Hylomeconosides L-Q, were isolated from the whole herb of Hylomecon Japonica, their structures were determined by analysis of 1D and 2D-NMR (1H–1H COSY, HSQC, and HMBC) spectroscopic data, mass spectrometry (HRESI-MS) and chromatographic data (GC and LC). Their structures were identified as 3-O-β-D-galactopyranosyl-(1 → 2)-β-D-glucuronopyranosyl gypsogenin 28-O-β-D-galactopyranosyl-(1 → 3)-α-L-rhamnopyranosyl-(1 → 2)-β-L-arabinopyranoside; 3-O-β-D-galactopyranosyl-(1 → 2)-β-D-glucuronopyranosyl gypsogenin 28-O-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-quinovopyranoside; 3-O-β-D-glucuronopyranosyl gypsogenin 28-O-β-D-xylopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-quinovopyranoside; 3-O-β-D-xylopyranosyl-(1 → 3)-β-D-glucuronopyranosyl gypsogenin 28-O-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-quinovopyranoside; 3-O-β-D-galactopyranosyl-(1 → 2)-[α-L-rhamnopyranosyl-(1 → 3)]-β-D-glucuronopyranosyl quillaic acid 28-O-β-D-xylopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-quinovopyranoside; 3-O-β-D-galactopyranosyl-(1 → 2)-[α-L-rhamnopyranosyl-(1 → 3)]-β-D-glucuronopyranosyl quillaic acid 28-O-β-D-xylopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-β-D-galactopyranoside. Hylomeconosides L-Q showed selective cytotoxicities against human cancer cell lines A549, AGS, HeLa, Huh 7, HT29 and K562. These results represent a contribution to the chemotaxonomy of the saponins of Hylomecon Japonica and their bioactivities.

New alkali tolerant β-galactosidase from Paracoccus marcusii KGP – A promising biocatalyst for the synthesis of oligosaccharides derived from lactulose (OsLu), the new generation prebiotics

Kalathinathan, Pooja,Pulicherla, Krishnakanth,Sain, Avtar,Gomathinayagam, Sankaranarayanan,Jayaraj, Rama,Thangaraj, Suresh,Kodiveri Muthukaliannan, Gothandam

, (2021/08/03)

The enzyme β-galactosidase can synthesise novel prebiotics such as oligosaccharides derived from lactulose (OsLu) which can be added as a supplement in infant food formula. In this study, the intracellular β-galactosidase produced by the alkaliphilic bacterium Paracoccus marcusii was extracted and purified to homogeneity using hydrophobic and metal affinity chromatography. The purification resulted in 18 U/mg specific activity, with a yield of 8.86% and an 18-fold increase in purity. The purified enzyme was a monomer with an 86 kDa molecular weight as determined by SDS PAGE and Q-TOF-LC/MS. β-Galactosidase was highly active at 50 °C and pH 6–8. The enzyme displayed an alkali tolerant nature by maintaining more than 90% of its initial activity over a pH range of 5–9 after 3 h of incubation. Furthermore, the enzyme activity was enhanced by 37% in the presence of 5 M NaCl and 3 M KCl, indicating its halophilic nature. The effects of metal ions, solvents, and other chemicals on enzyme activity were also studied. The kinetic parameters KM and Vmax of β-galactosidase were 1 mM and 8.56 μmoles/ml/min and 72.72 mM and 11.81 μmoles/ml/min on using oNPG and lactose as substrates. P. marcusii β-galactosidase efficiently catalysed the transgalactosylation reaction and synthesised 57 g/L OsLu from 300 g/L lactulose at 40 °C. Thus, in this study we identified a new β-galactosidase from P. marcusii that can be used for the industrial production of prebiotic oligosaccharides.

A novel acylated flavonol tetraglycoside and rare oleanane saponins with a unique acetal-linked dicarboxylic acid substituent from the xero-halophyte Bassia indica

Othman, Ahmed,Amen, Yhiya,Shimizu, Kuniyoshi

, (2021/05/17)

In recent years, the scientific interest and particularly the economic significance of halophytic plants has been highly demanding due to the medicinal and nutraceutical potential of its bioactive compounds. A xero-halophyte Bassia indica is deemed to be

Supramolecular Interaction of Molecular Cage and β-Galactosidase: Application in Enzymatic Inhibition, Drug Delivery and Antimicrobial Activity

Mondal, Avijit,Bhat, Imtiyaz Ahmad,Karunakaran, Subbaraj,De, Mrinmoy

, p. 1955 - 1960 (2021/05/04)

Enzyme inhibitors play a crucial role in diagnosis of a wide spectrum of diseases related to bacterial infections. We report here the effect of a water-soluble self-assembled PdII8 molecular cage towards β-galactosidase enzyme activity. The molecular cage is composed of a tetrapyridyl donor (L) and cis-[(en)Pd(NO3)2] (en=ethane-1,2-diamine) acceptor and it has a hydrophobic internal cavity. We have observed that the acceptor moiety mainly possesses the ability to inactivate the β-galactosidase enzyme activity. Kinetic investigation revealed the mixed mode of inhibition. This inhibition strategy was extended to control the growth of methicillin-resistant Staphylococcus aureus. The internalization of the Pd(II) cage inside the bacteria was confirmed when bacterial solutions were incubated with curcumin loaded cage. The intrinsic green fluorescence of curcumin made the bacteria glow when put under an optical microscope. Furthermore, this curcumin loaded molecular cage shows an enhanced antibacterial activity. Thus, PdII8 molecular cage is quite attractive due to its dual role as enzyme inhibitor and drug carrier.

Process route upstream and downstream products

Process route

4-nitrophenyl-β-D-galactopyranoside
3150-24-1

4-nitrophenyl-β-D-galactopyranoside

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

Conditions
Conditions Yield
With galactanase from Penicillium citrinum; In water; at 40 ℃; Product distribution; acetate buffer, pH 4.5; activity of galactanase, also in the presence of HgCl2, KCl, and various metal ions;
With recombinant β-D-galactosidase from Paenibacillus thiaminolyticus, histidine-tagged protein; at 37 ℃; for 0.166667h; pH=6; Kinetics; aq. phosphate buffer; Enzymatic reaction;
With β-D-galactosidase from Penicillium sp.; water; In aq. acetate buffer; at 37 ℃; pH=5; Kinetics; Enzymatic reaction;
4-nitrophenyl α-D-galactoside
7493-95-0

4-nitrophenyl α-D-galactoside

α-D-galactopyranose
3646-73-9

α-D-galactopyranose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

4-nitrophenyl (α-D-galactopyranosyl)-(1->3)-α-D-galactopyranoside
110891-71-9

4-nitrophenyl (α-D-galactopyranosyl)-(1->3)-α-D-galactopyranoside

4-nitrophenyl (α-D-galactopyranosyl)-(1->2)-α-D-galactopyranoside

4-nitrophenyl (α-D-galactopyranosyl)-(1->2)-α-D-galactopyranoside

4-nitrophenyl (α-D-galactopyranosyl)-(1->6)-α-D-galactopyranoside
187394-28-1,335193-88-9

4-nitrophenyl (α-D-galactopyranosyl)-(1->6)-α-D-galactopyranoside

Conditions
Conditions Yield
With glycoside hydrolase family 36 α-galactosidase from Thermotoga maritima; In aq. phosphate buffer; at 60 ℃; pH=7.0; Temperature; regioselective reaction; Kinetics;
(24S,25S)-2α,12β,24-trihydroxyspirost-5-en-3β-yl O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside

(24S,25S)-2α,12β,24-trihydroxyspirost-5-en-3β-yl O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside

β-D-glucose
492-61-5

β-D-glucose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

(24S,25S)-spirost-5-ene-2,3,12,24-tetrol

(24S,25S)-spirost-5-ene-2,3,12,24-tetrol

Conditions
Conditions Yield
With naringinase; In aq. acetate buffer; at 28 ℃; for 132h; pH=4.3; Enzymatic reaction;
2α-hydroxyspirosta-5,25(27)-dien-3β-yl O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside

2α-hydroxyspirosta-5,25(27)-dien-3β-yl O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside

β-D-glucose
492-61-5

β-D-glucose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

C<sub>27</sub>H<sub>40</sub>O<sub>4</sub>

C27H40O4

Conditions
Conditions Yield
2α-hydroxyspirosta-5,25(27)-dien-3β-yl O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside; With hydrogenchloride; In 1,4-dioxane; water; at 95 ℃; for 1h; Inert atmosphere;
In methanol; Overall yield = 8.3 mg;
11-O-β-D-glucopyranosyloxy-5-methoxy-6-oxabenzochrysen-1-one
1467066-63-2

11-O-β-D-glucopyranosyloxy-5-methoxy-6-oxabenzochrysen-1-one

β-D-glucose
492-61-5

β-D-glucose

β-D-xylopyranoside
2460-44-8

β-D-xylopyranoside

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

6-deoxy-β-D-mannopyranose
28161-50-4

6-deoxy-β-D-mannopyranose

Conditions
Conditions Yield
With hydrogenchloride; In water; at 90 ℃; for 6h;
medalose

medalose

N-acetyl-D-glucosamine
14131-68-1

N-acetyl-D-glucosamine

β-D-glucose
492-61-5

β-D-glucose

alpha-D-glucopyranose
492-62-6

alpha-D-glucopyranose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

Conditions
Conditions Yield
With hydrogenchloride; acetic acid; In water; at 100 ℃; for 1h;
medalose

medalose

N-acetyl-D-glucosamine
14131-68-1

N-acetyl-D-glucosamine

β-D-glucose
492-61-5

β-D-glucose

alpha-D-glucopyranose
492-62-6

alpha-D-glucopyranose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

methyl beta-D-glucopyranoside
709-50-2

methyl beta-D-glucopyranoside

methyl-alpha-D-glucopyranoside
97-30-3

methyl-alpha-D-glucopyranoside

Conditions
Conditions Yield
With sulfuric acid; In 1,4-dioxane; at 50 ℃; for 22h;
3-O-β-D-galactopyranosyl-(1→3)-β-D-glucuronopyranosyl caulophyllogenin 28-O-β-D-glucopyranosyl-(1→3)-[β-D-glucopyranosyl-(1→2)]-β-D-fucopyranoside

3-O-β-D-galactopyranosyl-(1→3)-β-D-glucuronopyranosyl caulophyllogenin 28-O-β-D-glucopyranosyl-(1→3)-[β-D-glucopyranosyl-(1→2)]-β-D-fucopyranoside

β-D-glucose
492-61-5

β-D-glucose

(2R,3R,4S,5R,6R)-6-Methyl-tetrahydro-pyran-2,3,4,5-tetraol
28161-52-6

(2R,3R,4S,5R,6R)-6-Methyl-tetrahydro-pyran-2,3,4,5-tetraol

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

Conditions
Conditions Yield
With trifluoroacetic acid; In water; at 90 ℃; for 6h;
3-O-β-D-galactopyranosyl(1→3)-β-D-glucuronopyranosyl caulophyllogenin 28-O-β-D-glucopyranosyl-(1→3)-[6-O-acetyl-β-D-glucopyranosyl-(1→2)]-β-D-fucopyranosi

3-O-β-D-galactopyranosyl(1→3)-β-D-glucuronopyranosyl caulophyllogenin 28-O-β-D-glucopyranosyl-(1→3)-[6-O-acetyl-β-D-glucopyranosyl-(1→2)]-β-D-fucopyranosi

β-D-glucose
492-61-5

β-D-glucose

(2R,3R,4S,5R,6R)-6-Methyl-tetrahydro-pyran-2,3,4,5-tetraol
28161-52-6

(2R,3R,4S,5R,6R)-6-Methyl-tetrahydro-pyran-2,3,4,5-tetraol

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

Conditions
Conditions Yield
With trifluoroacetic acid; In water; at 90 ℃; for 6h;
3-O-β-D-xylopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranosylechinocysticacid 28-O-β-D-xylopyranosyl-(1→3)-β-D-xylopyranosyl-(1→4)-[β-D-galactopyranosyl-(1→2)]-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranosylester
1580052-51-2

3-O-β-D-xylopyranosyl-(1→2)-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranosylechinocysticacid 28-O-β-D-xylopyranosyl-(1→3)-β-D-xylopyranosyl-(1→4)-[β-D-galactopyranosyl-(1→2)]-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranosylester

β-D-glucose
492-61-5

β-D-glucose

β-D-xylopyranoside
2460-44-8

β-D-xylopyranoside

L-rhamnose
6014-42-2

L-rhamnose

β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

L-arabinose
7296-55-1

L-arabinose

Conditions
Conditions Yield
With hydrogenchloride; water; In 1,4-dioxane; at 100 ℃; for 1h;

Global suppliers and manufacturers

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  • Shanghai Upbio Tech Co.,Ltd
  • Business Type:Lab/Research institutions
  • Contact Tel:+86-21-52196435
  • Emails:emmahu@up-bio.com
  • Main Products:88
  • Country:China (Mainland)
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