Dactylorhin B

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MedKoo CAT#: 581208

CAS#: 256459-36-6

Description: Dactylorhin B is isolated from Coeloglossum viride. Dactylorhin B [short for bis(4-beta-D-glucopyranosyloxybenzyl)-2-beta-D-glucopyranosyl-2-isobutyltartrate (DHB)] is an active compound isolated from Coeloglossum viride. (L.) Hartm. var. bracteatum (Willd.) and may have neuroprotective effects. Dactylorhin B reduces toxic effects of beta-amyloid fragment (25-35) on neuron cells and isolated rat brain mitochondria. beta-amyloid is strongly implicated in Alzheimer's pathology, and mitochondria play an important role in neurodegenerative disorders.

Chemical Structure

Dactylorhin B
CAS# 256459-36-6

Theoretical Analysis

MedKoo Cat#: 581208
Name: Dactylorhin B
CAS#: 256459-36-6
Chemical Formula: C40H57O23
Exact Mass: 905.3291
Molecular Weight: 905.87
Elemental Analysis: C, 53.04; H, 6.34; O, 40.62

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
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Synonym: Dactylorhin B;

IUPAC/Chemical Name: Bis(4-beta-D-glucopyranosyloxybenzyl)-2-beta-D-glucopyranosyl-2-isobutyltartrate


InChi Code: InChI=1S/C40H57O23/c1-17(2)11-40(56,35-31(50)28(47)25(44)22(12-41)61-35,39(55)58-16-19-5-9-21(10-6-19)60-38-33(52)30(49)27(46)24(14-43)63-38)34(53)36(54)57-15-18-3-7-20(8-4-18)59-37-32(51)29(48)26(45)23(13-42)62-37/h3-10,17,22-35,37-38,41-53,56H,11-16H2,1-2H3/t22-,23-,24-,25-,26-,27-,28+,29+,30+,31-,32-,33-,34?,35-,37-,38-/m1/s1

SMILES Code: OC(C(C(OCC1=CC=C(O[C@H]2[C@@H]([C@H]([C@@H]([C@@H](CO)O2)O)O)O)C=C1)=O)O)(CC(C)C)([C@H]3[C@@H]([C@H]([C@@H]([C@@H](CO)O3)O)O)O)C(OCC4=CC=C(O[C@H]5[C@@H]([C@H]([C@@H]([C@@H](CO)O5)O)O)O)C=C4)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 905.87 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Zhang D, Zhang Y, Liu G, Zhang J. Dactylorhin B reduces toxic effects of beta-amyloid fragment (25-35) on neuron cells and isolated rat brain mitochondria. Naunyn Schmiedebergs Arch Pharmacol. 2006 Nov;374(2):117-25. Epub 2006 Oct 5. PubMed PMID: 17021851.

2: Yue Z, Zi J, Zhu C, Lin S, Yang Y, Shi J. [Constituents of Gymnadenia conopsea]. Zhongguo Zhong Yao Za Zhi. 2010 Nov;35(21):2852-61. Chinese. PubMed PMID: 21322946.

3: Li M, Guo SX, Wang CL, Xiao PG. Quantitative determination of five glucosyloxybenzyl 2-isobutylmalates in the tubers of Gymnadenia conopsea and Coeloglossum viride var. bracteatum by HPLC. J Chromatogr Sci. 2009 Sep;47(8):709-13. PubMed PMID: 19772750.

4: Yang B, Li S, Zhang R, Wang Y, Shi J. [Quantitative analysis of four active constituents in Tibetan herb Gymnadenia conopsea by high-performance liquid chromatography]. Zhongguo Zhong Yao Za Zhi. 2009 Jul;34(14):1819-22. Chinese. PubMed PMID: 19894516.

5: Huang SY, Shi JG, Yang YC, Hu SL. [Studies on the chemical constituents of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter]. Yao Xue Xue Bao. 2002 Mar;37(3):199-203. Chinese. PubMed PMID: 12579762.

6: Cai M, Zhou Y, Gesang S, Bianba C, Ding LS. Chemical fingerprint analysis of rhizomes of Gymnadenia conopsea by HPLC-DAD-MSn. J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Dec 5;844(2):301-7. Epub 2006 Aug 23. PubMed PMID: 16934540.

7: Huang SY, Li GQ, Shi JG, Mo SY. Chemical constituents of the rhizomes of Coeloglossum viride var. bracteatum. J Asian Nat Prod Res. 2004 Mar;6(1):49-61. PubMed PMID: 14989381.

8: Li M, Wang YF, Ma B, Liu GT, Zhang JJ. [Effect and mechanism of Coeloglossum viride var. bracteatum extract on scopolamine-induced deficits of learning and memory behavior of rodents]. Yao Xue Xue Bao. 2009 May;44(5):468-72. Chinese. PubMed PMID: 19618720.