Hangzhou Weiyi Chemical Co., Ltd.

Address: Room 502,Unit 3 Building 4,Jiangnan Mingcheng Plaza,NO.828 Shixin North Road,Xiaoshan District, Hangzhou, Zhejiang, China
Phone: +86-(571)-8287 5660 | Fax: +86-(571)-8286 9398 | Map/Directions >>

Profile: Hangzhou Weiyi Chemical Co., Ltd. specializes in the production of fine chemical products. Our products include disperse dyestuff, reactive dyestuff, acid dyestuff, cationic dyestuffs, and all kinds of pigments & chemical intermediates.

23 Products/Chemicals (Click for related suppliers)  
• Acid Black 172
IUPAC Name: trisodium; chromium(3+); 7-nitro-3-oxido-4-(2-oxidonaphthalen-1-yl)diazenylnaphthalene-1-sulfonate | CAS Registry Number: 61847-77-6
Synonyms: Rylan Black R, Bemaplex Black CR, Black M-RN, Erionyl Black M-R, Ricoamide Black RPL, Erionyl Black M-RN, Sella Fast Black BR, Nylomine Black D 2R, Telon Black LD 01, Dye-O-Lan Black RPL, Neutrichrome Black M-R, C.I. Acid Black 172, Nylanthrene Black C-DPL, Sella Fast Black BR 7, EINECS 260-906-9, CID11979793, C.I. 15711:1, LS-195530, Chromate(3-), bis(3-(hydroxy-kappaO)-4-((2-(hydroxy-kappaO)-1-naphthalenyl)azo-kappaN1)-7-nitro-1-naphthalenesulfonato(3-))-, trisodium, Chromate(3-), bis(3-hydroxy-4-((2-hydroxy-1-naphthaleneyl)azo)-7-nitro-1-naphthalenesulfonato(3-))-, trisodium

Molecular Formula: C40H20CrN6Na3O14S2Molecular Weight: 993.714010 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 18


• Acid Black 24
IUPAC Name: 8-anilino-5-[4-(5-sulfonaphthalen-1-yl)diazenylnaphthalen-1-yl]diazenylnaphthalene-1-sulfonic acid; sodium | CAS Registry Number: 3071-73-6
Synonyms: Sulfon Black S, Fenazo Black SB, Durol Black B, Cloth Black MB, Durol Black BA, Acid Black S, Fast Black B, Milling Black BB, Sulfonine Black B, Sulphonol Black B, Cirene Black BRA, Durol Black 2B, Alphanol Black GV, Bucacid Black 2B, Neutral Black 3B, Sulphone Black BB, Midlon Black P2B, Sulfonine Black BB, Sulphonol Black BR, Alphanol Black BBN

Molecular Formula: C36H25N5NaO6S2Molecular Weight: 710.733370 [g/mol]
H-Bond Donor: 3H-Bond Acceptor: 11


• Acid Black 52
IUPAC Name: trisodium; chromium; 4-[(2-hydroxynaphthalen-1-yl)hydrazinylidene]-7-nitro-3-oxonaphthalene-1-sulfonate | CAS Registry Number: 5610-64-0
Synonyms: Palatine Fast Black WAN, ACID BLACK 52, CID11979962, CID 11979962

Molecular Formula: C60H36Cr2N9Na3O21S3Molecular Weight: 1488.132050 [g/mol]
H-Bond Donor: 6H-Bond Acceptor: 27


• Acid Blue 182 (CAS: 12219-26-0)
• Acid Brown 282 (CAS: 12219-65-7)
• Acid Dyes
IUPAC Name: sodium;4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzene-1,3-disulfonate

Molecular Formula: C27H31N2NaO6S2Molecular Weight: 566.663 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 7


• Acid Yellow 219 (CAS: 71819-57-3)
• Cationics
• Direct Dyes
IUPAC Name: disodium [2-(9-chloro-3-sulfonatooxybenzo[g][1]benzothiol-2-yl)-1H-indol-3-yl] sulfate | CAS Registry Number: 10169-52-5
Synonyms: CID82421, EINECS 233-441-4, Disodium 2-(9-chloro-3-(sulphonatooxy)naphtho(1,2-b)thien-2-yl)-1H-indol-3-yl sulphate, 1H-Indol-3-ol, 2-(9-chloro-3-(sulfooxy)naphtho(1,2-b)thien-2-yl)-, 3-(hydrogen sulfate), sodium salt (1:2), 1H-Indol-3-ol, 2-(9-chloro-3-(sulfooxy)naphtho(1,2-b)thien-2-yl)-, hydrogen sulfate (ester), disodium salt

Molecular Formula: C20H10ClNNa2O8S3Molecular Weight: 569.922840 [g/mol]
H-Bond Donor: 1H-Bond Acceptor: 8


• Disperse Dyes
• Dyestuff and Pigments
• Patent Blue
IUPAC Name: sodium 4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzene-1,3-disulfonate | CAS Registry Number: 129-17-9
Synonyms: Sulfan Blue, Patent Blue VF, Sulphanblau, Disulphen Blau, Sulphan Blue, Disulphine VN, Acid blue 1, Alphazurine 2G, Bleu patente V, Hidacid Blue V, Leather Blue G, Carmine Blue VF, Amacid Blue V, Patent Blue V, Carmin Blue VS, Fenazo Blue XF, Patent Blue VS, Xylene Blue VS, Erioglaucine Supra, Hexaco Blue VRS

Molecular Formula: C27H31N2NaO6S2Molecular Weight: 566.664610 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 7


• Reactive Dyes
• Solvent Dye
• Sulphur Dyes
• Vat Black 38 (CAS: 12237-35-3)
• Vat Black 9 (CAS: 1328-25-2)
• Vat Blue 18
Synonyms: Dibenzanthrone, Violanthrone, Violanthrone A, Bianthrone A, Violanthrene N, Irgalite Blue 2R, Paradone Dark Blue, Tinon Dark Blue BOA, Ahcovat Dark Blue BO, Tinon Dark Blue BO, Tinon Dark Blue MB, Vat Dark Blue O, Pigment Blue 65, Ponsol Dark Blue BR, Vat Blue 20, Tinon Dark Blue BOR, Tinon Dark Blue MBA, Caledon Dark Blue BM, Navinon Dark Blue BO, Benzadone Navy Blue R

Molecular Formula: C34H16O2Molecular Weight: 456.489640 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 2


Synonyms: Hned kypova 25, Indanthrene Red Brown 5RF, C.I. Vat Brown 25, Fenanthrene Red Brown 5R, Indanthren Red Brown 5RF, Mikethrene Red Brown 5RF, Hned kypova 25 [Czech], Carbanthrene Red Brown 5R, Ostanthren Reddish Brown 5RF, Indanthrene Reddish Brown 5RF, EINECS 228-367-4, Hned cervenava ostanthrenova 5 RF, BRN 0382455, CID197846, Hned cervenava ostanthrenova 5 RF [Czech], C.I. 69020, LS-62042, 2-22-00-00461 (Beilstein Handbook Reference), 16H-Dinaphtho(2,3-a:2',3'-i)carbazole-5,10,15,17-tetraone, 6,9-dibenzamido-1-methoxy-, N,N'-(10,15,16,17-Tetrahydro-1-methoxy-5,10,15,17-tetraoxo-5H-dinaphtho(2,3-a:2',3'-i)carbazole-4,9-diyl)bis(benzamide)

Molecular Formula: C43H25N3O7Molecular Weight: 695.674500 [g/mol]
H-Bond Donor: 3H-Bond Acceptor: 7


• Vat Dyes
• Vat Orange 3
Synonyms: Lionogen Red GD, Monolite Red 2Y, Lake Fast Red G, Indazin Scarlet GL, Brilliant Orange RK, Brilliant Orange KKh, Hostaperm Scarlet GO, Sumitone Fast Red G, Helanthrene Orange RK, Monolite Fast Red YS, Helio Fast Scarlet EB, C.I. Vat Orange 3, Helio Brilliant Orange RK, Helio Fast Scarlet EGL, Cromophtal Scarlet A 2G, Vat Brilliant Orange KKh, 4,10-Dibromoanthanthrone, Tinon Brilliant Orange RK, Vat Brilliant Orange KKhd, Bright Orange Anthraquinone

Molecular Formula: C22H8Br2O2Molecular Weight: 464.105720 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 2


• 1,1'-Diethyl(3,3'-Bianthra(1,9-Cd)pyrazole)-6,6'(1h,1'H)-Dione
Synonyms: Ahcovat Rubine R, Cibanone Red 6B, Ponsol Red 2B, Ponsol Red 2BD, Nihonthrene Red BB, Tinon Red 6B, Fenanthren Rubine R, Indanthren Rubine R, Indanthrene Rubine R, Cibanone Red F 6B, Indanthren Rubine RS, Carbanthrene Red G 2B, Cerven kypova 13, Nyanthrene Red G 2B, Vat Red 13, Palanthrene Red G 2B, Sandothrene Red N 6B, Carbanthrene Red G 2BP, C.I. Vat Red 13, C.I. Pigment Red 195

Molecular Formula: C32H22N4O2Molecular Weight: 494.542680 [g/mol]
H-Bond Donor: 0H-Bond Acceptor: 4


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