CAS 129499-78-1: MDN99781

  • CAS 129499-78-1: MDN99781

CAS 129499-78-1: MDN99781
(World's Largest Pharmaceutical Supplier)

  • CAS Number: 129499-78-1
  • Stock: 211g
  • Assay: 99.32%

MDN99781, CAS 129499-78-1

MDN99781, CAS 129499-78-1, Stock 211g, Assay 98.29%, White powderWater 0.30%, Single Impurity 0.38%.


MDN99781, also known as 2-O-α-D-Glucopyranosyl-L-ascorbic acid is a glucosylated derivative of L-ascorbic acid that has antioxidant and radioprotective activities. It scavenges 2,2-diphenyl-1-picrylhydrazyl radicals in a cell-free assay. AA-2G inhibits γ-radiation-induced cell death in CHO-10B2 and radiosensitive xrs5 cells, as well as UVC- or broadband UVB-induced cell death in CHO-10B2 and UV-sensitive UV135 cells. It is hydrolyzed to ascorbic acid by α-glucosidase and increases serum levels of ascorbic acid in rats and guinea pigs when administered orally at doses of 19.2 and 96 mg/animal, respectively. AA-2G reverses weight loss and inhibits subcutaneous hemorrhage in guinea pigs fed a vitamin C-deficient diet. This product has no formal name at the moment. For the convenience of communication, a temporary code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page:

Product Details:

Name: MDN99781

CAS#: 129499-78-1

Chemical Formula: C12H18O11

Exact Mass: 338.0849

Molecular Weight: 338.265

Elemental Analysis: C, 42.61; H, 5.36; O, 52.03


Synonym: AA-2G; Asc2G; Ascorbic Acid 2-glucoside; MDN99781; MDN 99781; MDN-99781

IUPAC/Chemical Name: (R)-5-((S)-1,2-dihydroxyethyl)-4-hydroxy-3-(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)furan-2(5H)-one


InChi Code: InChI=1S/C12H18O11/c13-1-3(15)9-8(19)10(11(20)22-9)23-12-7(18)6(17)5(16)4(2-14)21-12/h3-7,9,12-19H,1-2H2/t3-,4+,5+,6-,7+,9+,12+/m0/s1

SMILES Code: OC[C@@H](O[C@@H]1OC2=C([C@]([H])(OC2=O)[C@@H](O)CO)O)[C@@H](O)[C@H](O)[C@H]1O

Appearance: Solid powder

Purity: >99% (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