S(-)or R(+)-1, 2-bi-2-naphtho .DL-Carnitine Hydrochloride.Dibenzoyl-L-tartaricacid Dibenzoyl-D-tartaricacid

Quantity Order:

S(-)or R(+)-1,2-bi-2-naphtho
other name:
S-(-)-2,2'-Dihydroxy-1,1'-dinaphthyl,
R-(+)-2,2'-Dihydroxy-1,1'-dinaphthyl
CAS No.:
(S): 18531-99-2 (R ): 18531-94-7
Molecular Formula:
C20H14O2
Formula Weight:
286.32
structure:
appearance :
light beige – white Crystals
HPLC
99%
melting point
205-211
specific rotation:
(R ) : 35.5 (S) :-35.5
application :
packing : 25kg , 50kgs
DL-Carnitine Hydrochloride
Formula C7H16CLNO3
Molecular Weight 197.66
Structure
Specification
Description White crystalline powder
Melting point 194~198°C
Assay 100±2%
pH 2.3~2.6(5% in water)
Loss on drying d1.0%
Residue on ignition d0.5%
NH4- d0.5%
Heavy metal d20ppm
Arsenic d2ppm
Packaging Paper or iron dru,20kg/drum(net)
Dibenzoyl-L-tartaricacid Dibenzoyl-D-tartaricacid
other name:
Dibenzoyl-L-tartaric acid monohydrate;
Dibenzoyl-D-tartaric acid monohydrate
Molecular Formula:
C18H14O8.H2O
Formula Weight :
376.31
CAS No.:
(L):[ 62708-56-9]
(D):[ 80822-15-7]
structure :
melting point :
88-90 °C
appearance:
Crystals
specific rotation:
(L): -115° (c=5,ethanol)
(D): 109° (c=2, ethanol)

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