潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

China Direct Fast Black G Suppliers, China Direct Fast Black G Manufacturers.

ChemNet  |   Sign in  |   Join Now
Verified
Supplier
17th

year

Hebei Rising Chemical Co., Ltd.
http://www.tcbest88.com/ChinaSuppliers/16097/
China Suppliers > zhonghuidyes >

Direct Fast Black G

Details for Direct Fast Black G

Direct Fast Black G

111Category:

Dyestuffs and Pigments/Direct Dyes

Direct Fast Black G
CAS NO: 6428-31-5
EC NO: 229-208-1
Molecular Formula: C34H27N13Na2S2O7
Molecular Weight: 839.77
Specification:
InChI: InChI=1/C34H29N13O7S2.2Na/c35-18-1-11-26(24(37)15-18)44-40-20-3-7-22(8-4-20)42-46-32-28(55(49,50)51)13-17-14-29(56(52,53)54)33(34(48)30(17)31(32)39)47-43-23-9-5-21(6-10-23)41-45-27-12-2-19(36)16-25(27)38;;/h1-16,48H,35-39H2,(H,49,50,51)(H,52,53,54);;/q;2*+1/p-2/b44-40+,45-41+,46-42+,47-43+;;
Synonyms: C.I. 35255;C.I. Direct Black 19;C.I. Direct Black 19 (VAN);C.I. Direct Black 19, disodium salt;Direct Fast Black G;C.I.Direct Black 19;disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate;(3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid;Direct Black G;
Molecular Structure: Direct Fast Black G 6428-31-5
if you are sourcing Direct Fast Black G from China ,just feel free to inquire
ChemNet  |   Product  |   Suppliers  |   Buy  |   Sell  |   News  |   REACH  |   Directory  |   CAS  |   Resource
ChemNet is a registered trademark of Zhejiang NetSun Co., Ltd.
主站蜘蛛池模板: 边坝县| 嘉黎县| 海城市| 福海县| 梓潼县| 澜沧| 和龙市| 雷州市| 兴义市| 江北区| 阳谷县| 肇东市| 河北省| 望谟县| 黑龙江省| 邹城市| 襄城县| 靖宇县| 疏勒县| 北碚区| 临西县| 凯里市| 临漳县| 广宁县| 百色市| 右玉县| 嘉鱼县| 文化| 黄冈市| 蒙自县| 汉源县| 太谷县| 泰兴市| 贞丰县| 商洛市| 无锡市| 许昌市| 略阳县| 连云港市| 信丰县| 新疆|