Vitamin B2 83-88-5 C17H20N4O6 98.0%～102.0% Yellow or orange-yellow, crystalline powder,98.0%～102.0%

D-Isoascorbic acid 89-65-6 C7H10O6 99%mion White to light yellow powder or crystalline powder,99%min

Pyridoxine hydrochloride 58-56-0 C8H11ClNO3 98.0-102.0% A white or almost white powder crystalline powder,98.0-102.0%

L-Menthol 2216-51-5 C10H20O 99.5%min Colorless transparent crystal,99.5%min

Appearance Colorless or slight-yellowish clear liquid and tests scorching hot then cool. It can be mixed in ethanol

Appearance White or slightly yellow crystals Assay by HPLC 99% min Specific Rotation -18.0 to -22.00 =4,H2O Order taste Characteristic Loss on drying Not more than 3.00% State of solution Clear and colorless 95% Total Ash Not more than 4.00% Heay Metals As Pb Cd Hg Sum Not more than 3.0 ppm Not more than 8.0ppm Not more than 0.5ppm Not more than 0.5ppm Not more than 20ppm Aflatoxins B1 Sum of B1+B2+G1+G2 Not more than 5ppb Not more than 10ppb Microbiological quantity Total plate count Yeast &Mold E.Coli. Salmonella PH.Eur.category 3A Not more than 1000cfu/g Not more than1000cfu/g Negative Negative

87-99-0 Xylitol C5H12O5 ≥99.0 White crystalline powder,≥99.0

Appearance White crystal or crystalline powder, odorless Assay 99%min Transmittance(10% water solution) 98%min Water 0.3% max Residue on ignition 0.05% max Specific rotation +18.5°～+19.5° PH 5.0-7.0 Chloride 0.005% max Sulphate 0.005% max Total bacterial ≤3000cfu/g Coli. ≤3MPN/g Molds and yeasts ≤25cfu/g

Appearance White powder Water （KF）% 0.5% max Assay 98%min

Appearance White powder or light yellow powder Total FOS（on dry matter） ≥95.0% Glucose+fructose+sugar（on dry matter） ≤5% PH value 4.5-7.0 Water ≤5.0 Sulphate ash,% ≤0.4 Arsenic(As) (mg/kg) ≤1 Lead(Pb) (mg/kg) ≤0.5 Total Aerobic Count(CFU/g) ≤1000 Total Coliform (MPN/100g) ≤30 Mold ≤25 Yeast ≤25 Pathogen No exist

Appearance White powder Identification: A.IR Concordant with Reference B.UV Concordant with Reference C.Test Solution forms yellow precipitate D.Denationium Reinecate Melting Point A.Complies B.Complies C.Complies D.Approx 170°C Melting range 163°C -170°C PH 6.5-7.5 Loss on drying 1.0% max Residue on ignition 0.1% max Chloride 0.2% max Assay 99.5%-101.0%

BETA-D-GLUCOPYRANOSYL(1-4)-D-GLUCOPYRANOSE 133-99-3 C12H22O11 "98%min " white crystalline powder 98%min