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Detail of "674-82-8"

  • MSDS Download
  • CAS Number:
  • 674-82-8
  • Name:

  • 2-Oxetanone,4-methylene-

  • Superlist Name:
  • Acetyl ketene
  • Molecular Structure:
  • Formula:
  • C4H4O2
  • Molecular Weight:
  • 84.07
  • Deleted CAS:
  • 6842-10-0/2130-41-8 /6144-29-2
  • Synonyms:
  • 3-Butenoicacid, 3-hydroxy-, b-lactone (6CI,7CI);4-Methylene-2-oxetanone;Diketene;Ethenone, dimer;Ketene dimer;NSC 93783;
  • EINECS:
  • 211-617-1
  • Density:
  • 1.10 g/cm3
  • Melting Point:
  • -7.5 °C
  • Boiling Point:
  • 127.4 °C at 760 mmHg
  • Flash Point:
  • 97.9 °C
  • Solubility:
  • soluble in water and organic solvents
  • Appearance:
  • colorless liquid
  • Hazard Symbols:
  • HarmfulXn
  • Risk Codes:
  • 10-20-40
  • Safety:
  • 3-36/37-33-24/25-23-16 Details
  • Transport Information:
  • UN 2929 6.1/PG 2
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CAS No.674-82-8 Acetyl ketene

Supplier:Ningbo Wanglong Group Co., Ltd. [ China (Mainland)]

Manufacturer 630Integral
630

Tel:+86-574-62092608

Address:Fangjia Road Xiaocaoe Town yuyao City China

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CAS No.674-82-8 Acetyl ketene

Supplier:Anhui Charm Imp.&Exp.Co., Ltd [ China (Mainland)]

Platinum
Supplier 925Integral
925

Tel:86 551 5316260

Address:No. 211,XiangZhang Road,Hefei City,Anhui Province,China

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CAS No.674-82-8 Acetyl ketene

Assay:99%  Appearance:white powder  Package:25kg/drumStorage:Ventilating ...  Transportation:by air/by se...  Application:Food &feed a...

Assay:97% min Appearance:Colorless or... Package:25kg net bag MF: C4H4O2 Application: Dyestuff Intermediates Supply Ability: 1000 Ton/Tons per Year Payment Terms: L/C,D/A,D/P,T/T

Min. Order:25Kilogram USD:1-10 /Kilogram

Supplier:SHAANXI TOP PHARM CHEMICAL CO.LTD [ China (Mainland)]

Platinum
Supplier 370Integral
370

Tel:+86-29-85733402

Address:No.108 ,west sector,south er huan,xi'an,china

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CAS No.674-82-8 Acetyl ketene

Assay:≥97%  Appearance:Colorless or...  Application:Used as inte...

Diketene (DK) Molecular Weight: 84.07 Specification: Melting Point:-6.5?? Boiling Point:127.4?? Flash Point:31??

Supplier:Shenyang Meiyao Chemical Co., Ltd., [ China (Mainland)]

Platinum
Supplier 1530Integral
1530

Tel:86-24-86136788

Address:No.134 Changjiang Street,Huanggu District,Shenyang,Liaoning,China.

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CAS No.674-82-8 Acetyl ketene

  Appearance:colorless li...  Application:Diketene is ...

CATEGORY: but-3-en-3-olide; diketen; Acetyl Ketene; Ketenedimer,99%; Ketene Dimer; Diketene; DK ; Acetyl ketene ; 4-Methylene-2-oxetanone ; But-3-en-3-olide; EINECS NO: 211-617-1 MOLECULAR FORMULA: C4H4O2 MOLECULAR WEIGHT: 84.07 PHYSICAL AND CHEMICAL PROPERTIES:

Supplier:Jiangsu Tiancheng Biochemical Products Co.,Ltd. [ China (Mainland)]

Platinum
Supplier 1045Integral
1045

Tel:+86-513-8877 6868

Address:Jiangsu

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CAS No.674-82-8 Acetyl ketene

Product Name Diketene Other name diketen; Ketenedimer,99%; Ketene Dimer; DK; Acetyl ketene; 4-Methylene-2-oxetanone; But-3-en-3-olide CAS No. 674-82-8 EINECS. No. 211-617-1 Structure Molecular Formula C4H4O2 Molecular Weight 84.07 Techn

Supplier:Shenyang Delishun Chemical Co., Ltd. [ China (Mainland)]

Platinum
Supplier 985Integral
985

Tel:+86-024-62640571

Address:Room14-7,No 3 South Changjiang Street,Huanggu District

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CAS No.674-82-8 Acetyl ketene

CASNO.:674-82-8 name :Acetyl ketene MF:C4H4O2 MW:84.07 EINECS no.:211-617-1 purity:99% 25kg/drum

Supplier:Heibei Xingruina Chem Co.,Ltd. [ China (Mainland)]

Platinum
Supplier

Tel:86-0311-67698661

Address:Room NO.2704 Building NO.7 Dijingcheng NO.255 Gongnong Street Shijiazhuang

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CAS No.674-82-8 Acetyl ketene

Acetyl ketene；Diketene

Supplier:ZIBO ZEYUAN IMPORT & EXPORT CO.,LTD [ China (Mainland)]

Platinum
Supplier 985Integral
985

Tel:+86-533-6723789

Address:Zhangdian District Youth League West Blue Diamond International 408 121

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CAS No.674-82-8 Acetyl ketene

2-Oxetanone,4-methylene-

Supplier:shijiazhuang xinluo chemical co.,ltd [ China (Mainland)]

Platinum
Supplier

Tel:86-311-67797177

Address:NO.33,Minsheng Road,Qiaodong District ,Shijiazhuang City,Heibei Province，China

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CAS No.674-82-8 Acetyl ketene

Assay:98%

Supplier:Hangzhou Dayangchem Co., Ltd. [ China (Mainland)]

Platinum
SupplierISO 3875Integral
3875

Tel:+86-571-88938639

Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

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CAS No.674-82-8 Acetyl ketene

Supplier:Shananxi Dongtaiyuan Chemical Technology Co.,Ltd. [ China (Mainland)]

Platinum
Supplier 975Integral
975

Tel:+86-029-88235712，+86-29-68062887

Address:NO.263 Taibai South Road Beilin District Xi’an City Shaanxi Province China

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CAS No.674-82-8 Acetyl ketene

Supplier:shijiazhuang guangkuo chemical co.,ltd [ China (Mainland)]

Platinum
Supplier 1585Integral
1585

Tel:+86-15383391676

Address:shijiazhuang

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CAS No.674-82-8 Acetyl ketene

Supplier:Jinan Haohua Industry CO., LTD [ China (Mainland)]

Platinum
Supplier 1525Integral
1525

Tel:0086-531-58773055

Address:NO.59 Gongye South Road

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CAS No.674-82-8 Acetyl ketene

Supplier:xuzhou kaiyide chemical co.,ltd [ China (Mainland)]

Platinum
Supplier 935Integral
935

Tel:86- 0311- 66686013

Address:2 units,,no.16,Zhongjiliyu ,shijiazhuan

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CAS No.674-82-8 Acetyl ketene

Supplier:Shijiazhuang SuTe trade Co.,LTD [ China (Mainland)]

Platinum
Supplier 930Integral
930

Tel:+86-311-89643238

Address:No.19 pingan North street,Qiaodong District,Shijiazhuang,P.R. China

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CAS No.674-82-8 Acetyl ketene

Supplier:shanxi huitongda huagong [ China (Mainland)]

Platinum
Supplier 1575Integral
1575

Tel:8615373954494

Address:No. 10, Nanjieerxiang, Qinxian Village, Xiaodian District,

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CAS No.674-82-8 Acetyl ketene

Supplier:Taizhou Round Biochemical Co., Ltd., [ China (Mainland)]

Platinum
Supplier 315Integral
315

Tel:0086-576-88807392

Address:No.535, Zhijing Road, Jiaojiang District, Taizhou, Zhejiang, 318000 China

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CAS No.674-82-8 Acetyl ketene

Assay:99%min

1.Product Name: Diketene 2.MF: C4H4O2 3.Type: Dyestuff Intermediates, Pharmaceutical Intermediates 4.Application: Dyestuff Intermediates 5.Place of Origin: China (Mainland)

Supplier:Shenyang Jiutongyuan Chemicals Co., Ltd. [ China (Mainland)]

1525Integral
1525

Tel:+86-024-62640739

Address:No.3 South Changjiang Street Huanggu District Shenyang City Liaoning Province China

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CAS No.674-82-8 Acetyl ketene

Chemical Name: Diketene Catalog Number: C-00064 CAS Number: 674-82-8 Molecular Formula: C4H4O2 Molecular Weight: 84.07 Purity: 97%

Supplier:Carbone scientific [ United Kingdom]

610Integral
610

Tel:+44(0)870 486 8629

Address:London, UK

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CAS No.674-82-8 Acetyl ketene

Quality standard: 1. Appearance:Colorless or light yellow transparent liquid 2. Content:DK%: 96%-98%(min) DK:99%(min) ACO2% Usage: dye, pigment, pesticide and organic intermediate Package: dry aluminum drum

Supplier:Zhangjiagang Hope Chemicals Co., Ltd. [ China (Mainland)]

120Integral
120

Tel:+86-512-56909166 、56909181

Address:Nansha Town, Zhangjiagang City, Jiangsu Province , China

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CAS No.674-82-8 Acetyl ketene

purity:97% min. Acetic anhydride:3.5% max.

Supplier:Zibo Jinma Chemical Factory [ China (Mainland)]

72Integral
72

Tel:86-533-2068822

Address:NO.15 Chemical Road,New & Hi-Tech Park

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CAS No.674-82-8 Acetyl ketene

DIKETENE

Supplier:Nacalai Tesque, Inc. [ Japan]

610Integral
610

Tel:81 75 251 1723 81-75-251-1730

Address:Nijo Karasuma, Nakagyo-ku Kyoto 604-0855 Japan

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CAS No.674-82-8 Acetyl ketene

DIKETENE

Supplier:Kanto Chemical Co., Inc. [ Japan]

610Integral
610

Tel:+81 3 3663 7631

Address:2-8, Nihonbashi Honcho 3-chome,Chuo-ku, Tokyo, 103-0023, Japan

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CAS No.674-82-8 Acetyl ketene

Supplier:Wacker Specialties Wacker Chemical Corporation [ United States]

10Integral
10

Tel:517-264-8134

Address:3301 Sutton Road Adrian, MI 49221

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CAS No.674-82-8 Acetyl ketene

Supplier:Multi-Tech Specialty Chemicals Co.,Ltd. [ China (Mainland)]

10Integral
10

Tel:86 22 25386531

Address:No. 1Xinghua Road, Tanggu District Tianjin,China

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CAS No.674-82-8 Acetyl ketene

Supplier:Suzhou Hope Technology Co., Ltd. [ China (Mainland)]

70Integral
70

Tel:+86 512 56909222 / +86 512 56909181

Address:Nansha, Jingang Town, Zhangjiagang City, Jiangsu Province, China

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CAS No.674-82-8 Acetyl ketene

Supplier:Wuhan Haizheng Industry & Trade Development Co. Ltd [ China (Mainland)]

10Integral
10

Tel:+86-27-88777879

Address:Room No 2-1-3201，HongYuan International Plaza，NO117，XuDong Road，

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CAS No.674-82-8 Acetyl ketene

Supplier:WACKER Group [ Germany]

98Integral
98

Tel:+49-89-6279-01

Address:Hanns-Seidel-Platz 4 81737 München, Germany

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Reference

Sizing agents for paper
Sizing agents for paper. (Kao Corp., Japan). Jpn. Kokai Tokkyo Koho JP 59150198 A2 28 Aug 1984 Showa, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: D21H003-02; D21H003-38. APPLICATION: JP 83-23410 15 Feb 1983. DOCUMENT TYPE: Patent CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Compns. contg. ketene dimer (I) [674-82-8] and water-sol. vinyl copolymers contg. units of hydrophobic vinyl monomers, CH2:CRCOZZ1N+R21R2X-, R is H or Me, R1 is a lower alkyl, R2 is H, a lower alkyl, or an hydroxyalkyl, Z is O or NH, Z1 is a C1-4 alkylene or C2-4 hydroxyalkylene, and X is a halogen or an acid residue, and water-sol. nonionic vinyl monomers are useful as neutral sizing agents for manuf. of paper. Thus, 16.9 g stearyl methacrylate was copolymd. with 31.4 g 2-(dimethylamino)ethyl methacrylate and 53.3 g acrylamide to give a copolymer (II) [94649-10-2]. A pulp slurry contg. 0.2% (solids, on pulp wt.) size compn. contg. 12% I and 3% II was used to prep. paper with high sizing degree.
Water-soluble 1:2 cobalt complex dyes
Water-soluble 1:2 cobalt complex dyes. (Hoechst A.-G., Ger.). Japan. Kokai JP 52130825 2 Nov 1977 Showa, 9 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B045-16. PRIORITY: DE 76-2618020 24 Apr 1976. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) I (R = Cl, NO2, R1 = H, OMe, R2 = 2,4-O2N(NaO3S)C6H3NH, 4-NaO3SC6H4N:N, 4-NaO3SCH2CH2SO2C6H4N:N, R3 = H, Me) were prepd. and used for dyeing cotton and polyamide fibers in golden yellow shade. For example, 2-amino-4-chlorophenol-6-sulfonic acid [88-23-3] was treated with 2-hydroxybenzaldehyde [90-02-8] and complexed with Co. 4-Amino-2'-nitrodiphenylamine-4'-sulfonic acid [135-11-5] was treated with diketene [674-82-8], coupled with diazotized 2-amino-4-nitrophenol [99-57-0], treated with the above Co complex, and salted to give I [R = NO2, R1 = R3 = H, R2 = 2,4-O2N(NaO3S)C6H3NH] [67062-54-8].
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