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Home > Products >  Aloin B

Aloin B CAS NO.28371-16-6

  • Min.Order: 10 Milligram
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Keywords

  • Aloin B
  • 28371-16-6
  • standard supplier in China

Quick Details

  • ProName: Aloin B
  • CasNo: 28371-16-6
  • Molecular Formula: C21H22O9=418.39
  • Appearance: detailed see specifications
  • Application: analysis,activity test,Botanical Refer...
  • DeliveryTime: 1-3?working?days?after?confirming?the?...
  • PackAge: According to the clients requirement.
  • Port: China main port
  • ProductionCapacity: 1 Metric Ton/Day
  • Purity: ≥98%
  • Storage: Store at 2~8°C
  • Transportation: by air or by ocean shipping
  • LimitNum: 10 Milligram
  • Plant of Origin: Chinese herbal medicine
  • Testing Method: NMR/MS/HPLC
  • Product Ecification: 1mg-1kg
  • Heavy Metal: <10ppm
  • Voluntary Standards: company standard
  • Storage: Store in dry, dark and ventilated plac...
  • PackAge: Brown vial HDPE plastic bottle

Superiority

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine，Traditional Chinese Medicine), Natural Active Pharmaceutical Ingredients worldwide. From small quantities for R&D or reference standard, to large quantities for customizing or manufacturing, Biopurify emphasizes on consistent and reliable services for his customers. 
With excellent quality products and good service, we have clients from more than dozens countries and regions, and we pride ourselves in providing our customers with a total satisfaction experiences.
We are doing our best to be your reliable partner for high quality Phytochemicals and Reference Standards from china.
 
Our main services:
A. Supply active ingredients and reference standards ofTraditional Chinese Medicine, from mgs to kgs scale.
B. Custom extraction and purification, target Herb Active Ingredients
C. Custom synthesis and semi-synthesis for Natural Active Ingredients
D. CR, CM and PD services from lab scale, pilot scale to commercial scale(GMP is also available)
E.Traditional Chinese Medicine compounds library
 

1.Provide traditional Chinese medicine reference materials and natural active ingredients;
2.More than 2200 compounds are available for selection, continuously building high-quality natural product libraries for drug research and development;
3.Provide various screening libraries and more inhibitor products;
4.Provide separation and structural determination of natural products;
5.Laboratory scale pilot to commercial scale collaborative research and process development services.More than 180 experiences in phytochemistry (still increasing)
Each product has passed very strict testing (NMR/MS/HPLC)
Agents from many countries

General tips：For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging：1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition：Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Details

Chemical Properties of Aloin B

Cas No. 28371-16-6 SDF  
PubChem ID 5458894 Appearance Yellow powder
Formula C21H22O9 M.Wt 418.39
Type of Compound Anthraquinones Storage Desiccate at -20°C
Synonyms Aloin-B; Isobarbaloin
Solubility DMSO : ≥ 100 mg/mL (239.01 mM)
*"≥" means soluble, but saturation unknown.
Chemical Name (10S)-1,8-dihydroxy-3-(hydroxymethyl)-10-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-10H-anthracen-9-one
SMILES C1=CC2=C(C(=C1)O)C(=O)C3=C(C=C(C=C3C2C4C(C(C(C(O4)CO)O)O)O)CO)O
Standard InChIKey AFHJQYHRLPMKHU-QVLOPWTGSA-N
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of Aloin B

The herbs of Aloe vera L.

Biological Activity of Aloin B

Description Dietary supplementation of aloe components (aloin, aloesin and aloe-gel) can ameliorate intestinal inflammatory responses in a 3% dextran sulfate sodium (DSS)-induced ulcerative colitis rat model, in particular, aloesin is the most potent inhibitor. The extract of A. vera and its active ingredient aloin cause melanin aggregation leading to skin lightening via alpha adrenergic receptor stimulation.
In vitro

Determination of Aloin A and Aloin B in Aloe vera Raw Materials and Finished Products by High-Performance Liquid Chromatography: Single-Laboratory Validation.[Pubmed: 25902982]

J AOAC Int. 2014 Sep-Oct;97(5):1323-8.

A single-laboratory validation (SLV) was conducted on an HPLC method for the detection and quantification of aloin A and Aloin B in Aloe vera raw materials and finished products.
METHODS AND RESULTS:
An extraction procedure using sonication with an acidified solvent was used for solid test materials while liquid test materials only required dilution, if necessary, prior to filtration and analysis. Separation was achieved using a fused core C18 column in 18 min under isocratic elution conditions allowing for a single analyte (aloin A) calibration curve to quantify both aloins. Adequate chromatographic resolution (Rs ≥1) was achieved for aloin A and Aloin B. The calibration curves for aloin A exhibited coefficients of determination (r(2)) of ≥99.9% over the linear range of 0.3-50 μg/mL.
CONCLUSIONS:
The LOD values were 0.092 and 0.087 μg/mL, and LOQ 0.23 and 0.21 μg/mL for aloin A and Aloin B, respectively.

Protocol of Aloin B

Structure Identification

Advanced Materials Research, Vols. 634-638, pp. 1241-1246, Jan. 2013

Isolation and Purification of Aloin a and Aloin B by High-Speed Counter-Current Chromatography[Reference: WebLink]


METHODS AND RESULTS:
High-speed counter-current chromatography(HSCCC) was successfully used for isolation and purification of Aloin A and Aloin B from the crude methanol extract of Aloe with a two-phase solvent system composed of chloroform–methanol–n-butylalcohol-water at an optimized volume ratio of 4:3:1:2 (v/v/v/v). The lower phase was used as the mobile phase in the head to tail elution mode. The preparative HSCCC separation was performed on 180 mg of the crude extract yielding pure Aloin A(18mg) and Aloin B(16mg) at purities of 95.2% and 96.8%, respectively, as determined by high performance liquid chromatography (HPLC).
CONCLUSIONS:
HSCCC is a powerful technique for isolation and separation of chemical composition from aloe.

Preparing Stock Solutions of Aloin B

  1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.3901 mL 11.9506 mL 23.9011 mL 47.8023 mL 59.7529 mL
5 mM 0.478 mL 2.3901 mL 4.7802 mL 9.5605 mL 11.9506 mL
10 mM 0.239 mL 1.1951 mL 2.3901 mL 4.7802 mL 5.9753 mL
50 mM 0.0478 mL 0.239 mL 0.478 mL 0.956 mL 1.1951 mL
100 mM 0.0239 mL 0.1195 mL 0.239 mL 0.478 mL 0.5975 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

References on Aloin B

Determination of Aloin A and Aloin B in Aloe vera Raw Materials and Finished Products by High-Performance Liquid Chromatography: Single-Laboratory Validation.[Pubmed:25902982]

J AOAC Int. 2014 Sep-Oct;97(5):1323-8.

A single-laboratory validation (SLV) was conducted on an HPLC method for the detection and quantification of aloin A and Aloin B in Aloe vera raw materials and finished products. An extraction procedure using sonication with an acidified solvent was used for solid test materials while liquid test materials only required dilution, if necessary, prior to filtration and analysis. Separation was achieved using a fused core C18 column in 18 min under isocratic elution conditions allowing for a single analyte (aloin A) calibration curve to quantify both aloins. Adequate chromatographic resolution (Rs >/= 1) was achieved for aloin A and Aloin B. The calibration curves for aloin A exhibited coefficients of determination (r(2)) of >/= 99.9% over the linear range of 0.3-50 mug/mL. The LOD values were 0.092 and 0.087 mug/mL, and LOQ 0.23 and 0.21 mug/mL for aloin A and Aloin B, respectively. Repeatability studies were performed on nine test materials on each of 3 separate days, with five of the test materials determined to be above the LOQ having repeatability RSD (RSDr) values ranging from 0.61 to 6.30%. Method accuracy was determined through a spike recovery study on both liquid and solid matrixes at three different levels: low, medium, and high. For both aloins, the recovery in the liquid matrix ranged from 92.7 to 106.3% with an RSDr of 0.15 to 4.30%, while for the solid matrix, the recovery ranged from 84.4 to 108.9% with an RSDr of 0.23 to 3.84%. Based on the results of the SLV study, it is recommended that this method be evaluated for reproducibility through a collaborative study.

Description

Aloin B is one isomer of Aloin; Aloin is a physiologically active anthraquinone present in aloe.

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