Low Price Tokyo Violet for Food Coloring Agent CAS 517-89-5 Shikonin Powder

• CAS No.: 517-89-5
• Formula: C16h16o5
• EINECS: 0
• Type: Synthesis Material Intermediates
• Appearance: Powder
• Colour: Purple
• Model NO.: a qsn 517-89-5
• MW: 288.3
• Purity: 99%
• Sample: Support
• Storage: Yes
• Transport Package: Bag
• Specification: 25kg
• Trademark: Future Chemical
• Origin: China
• Production Capacity: 1000ton

Product Description

Product Description

Tokyo Violet for food coloring agent Cas 517-89-5 Shikonin powder     

5,8-Dihydroxy-2-[(1R)-1-hydroxy-4-methyl-pent-3-enyl]naphthalene-1,4-dione Basic information
Product Name:	5,8-Dihydroxy-2-[(1R)-1-hydroxy-4-methyl-pent-3-enyl]naphthalene-1,4-dione
CAS:	517-89-5
MF:	C16H16O5
MW:	288.3
EINECS:
5,8-Dihydroxy-2-[(1R)-1-hydroxy-4-methyl-pent-3-enyl]naphthalene-1,4-dione Chemical Properties
Melting point	148ºC
Boiling point	567.4±50.0 °C(Predicted)
density	1.373±0.06 g/cm3(Predicted)
storage temp.	-20°C
pka	7.34±0.20(Predicted)
form	Red crystalline solid.
CAS DataBase Reference	517-89-5(CAS DataBase Reference)

ITEM	STANDARD	TEST RESULT
Specification/Assay	≥95%	96.24%
Physical & Chemical
Appearance	Purple powder	Complies
Odor & Taste	Characteristic	Complies
Particle Size	100% pass 80 mesh	Complies
Loss on Drying	≤5.0%	2.55%
Ash	≤1.0%	0.54%
Heavy Metal
Total Heavy Metal	≤10.0ppm	Complies
Lead	≤2.0ppm	Complies

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