Qingdao longyuntong corporation , chinese supplier, can offer indigo blue now with better price and good quality,if you are interested, pls don't hesitate to contact us!
Below is the speficiation of indigo blue:
INDIGO BLUE(C.I. VAT BLUE 1)
CAS NO.: 482-89-3
MW. : 262.26
CHEMICAL FORMULA: C16H10N2O2
APPEARANCE: DARK BLUE GRANULAR
It is mainly used for dyeing cotton yarn or cotton cloth.Also can be used for wool and silk.There are applications in carpets and handicrafts.
welcome to contact us!
QINGDAO LONGYUNTONG CORPORATION
Add: Qingdao,China R.2616-2618,blk.2 Noble Plaza,No.328 Dunhua Road