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CAS RN: 21967-41-9 | Product Number: B2835


Purity: >90.0%(T)
  • 5,6-Dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl β-D-Glucopyranosiduronic Acid
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Product Number B2835
Purity / Analysis Method >90.0%(T)
Molecular Formula / Molecular Weight C__2__1H__1__8O__1__1 = 446.36  
Physical State (20 deg.C) Solid
CAS RN 21967-41-9
Reaxys Registry Number 70480
PubChem Substance ID 87558905
SDBS (AIST Spectral DB) 51630
MDL Number


Appearance White to Yellow powder to crystal
Purity(Neutralization titration) min. 90.0 %
Melting point 194.0 to 199.0 °C
Specific rotation [a]20/D -79.0 to -89.0 deg(C=1, DMSO)
Properties (reference)
Melting Point 196 °C
Specific Rotation -84° (C=1,DMSO)
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
RTECS# LZ5776910
Transport Information:
HS Number 2932990090
PubMed Literature

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