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21890-57-3

Basic Information
CAS No.: 21890-57-3
Name: 3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dione
Article Data: 10
Molecular Structure:
Molecular Structure of 21890-57-3 (3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dione)
Formula: C11H7ClO3
Molecular Weight: 222.628
Synonyms: CHLOROPLUMBAGIN;5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone;2-methyl-3-chloro-5-hydroxy-1,4-naphthoquinone;3-Chloro-plumbagin;
Density: 1.49g/cm3
Boiling Point: 389.3°C at 760 mmHg
Flash Point: 189.3°C
PSA: 54.37000
LogP: 2.28400
Synthetic route
481-42-5

5-hydroxy-2-methyl-1,4-naphthoquinone

A

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

B

57093-07-9

3,6-dichloro-5-hydroxy-2-methyl-[1,4]naphthoquinone

Conditions
ConditionsYield
With chlorine; acetic acid
481-42-5

5-hydroxy-2-methyl-1,4-naphthoquinone

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
With chlorine In chloroform for 24h; Ambient temperature;85 mg
With hydrogenchloride; potassium permanganate; acetic acid; sodium acetate for 1h;240 mg
76855-75-9

3-Chlorplumbaginacetat

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
With aluminium trichloride In dichloromethane for 3h; Ambient temperature;
18855-92-0

3-chlorojuglone

67-68-5

dimethyl sulfoxide

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
With dihydrogen peroxide 1.) dioxan, room temp., 30 min, 2.) dioxan, 15 min; Yield given. Multistep reaction;
91855-98-0

5-Acetoxy-3-chlor-1,4-naphthochinon

67-68-5

dimethyl sulfoxide

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
Yield given. Multistep reaction;
91855-98-0

5-Acetoxy-3-chlor-1,4-naphthochinon

A

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

B

3-Chlor-5-hydroxy-2-(4-nitrophenyl)-1,4-naphthochinon

Conditions
ConditionsYield
With ammonium peroxydisulfate; aluminium trichloride; silver nitrate; 4-nitro-benzoic acid 1.) CH3CN, water, 80 deg C, 40 min, 2.) CH2Cl2, r.t., 3 h; Yield given. Multistep reaction. Yields of byproduct given;
91855-98-0

5-Acetoxy-3-chlor-1,4-naphthochinon

62-23-7

4-nitro-benzoic acid

A

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

B

98-95-3

nitrobenzene

C

3-Chlor-5-hydroxy-2-(4-nitrophenyl)-1,4-naphthochinon

Conditions
ConditionsYield
With ammonium peroxydisulfate; aluminium trichloride; silver nitrate 1.) CH3CN, water, 80 deg C, 40 min, 2.) CH2Cl2, r.t., 3 h; Yield given. Multistep reaction. Yields of byproduct given;
481-42-5

5-hydroxy-2-methyl-1,4-naphthoquinone

A

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

B

188675-38-9

2-methyl-5-hydroxy-2,3-epoxy-2,3-dihydro-1,4-naphthoquinone

Conditions
ConditionsYield
With hydrogenchloride; sodium perborate; sulfuric acid 1.) ethanol, 2 min; Yield given. Multistep reaction. Yields of byproduct given;
64-19-7

acetic acid

3-chloro-5-hydroxy-naphthoquinone-(1.4)

3-chloro-5-hydroxy-naphthoquinone-(1.4)

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

Conditions
ConditionsYield
With diacetyl peroxide
481-42-5

5-hydroxy-2-methyl-1,4-naphthoquinone

A

21890-57-3

5-hydroxy-2-methyl-3-chloro-1,4-naphthoquinone

B

3,6(?)-dichloro-5-hydroxy-2-methyl-<1,4>naphthoquinone

3,6(?)-dichloro-5-hydroxy-2-methyl-<1,4>naphthoquinone

Conditions
ConditionsYield
With chlorine; acetic acid
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    Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers. Prompt reaction, good quality and best service make us reliable and outstanding in this industry.Appearance:yellow to white solid or po

    HEBEI MINGXING BIOTECH CO.,LTD is a international firm starts its exporting business since Sept,2010.Our company was registered legally in Shijiazhuang Administration of Industry a

  • Hebei mingxing biotech co.,ltd

    China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:0311-69115445

    Address:No 29,Phoenix Town,Jianhua south street,Yuhua district

       Inquiry Now

  • CAS21890-57-3 3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dione

  • Casno:

    21890-57-3

    CAS21890-57-3 3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dione

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    CAS21890-57-3 3-chloro-5-hydroxy-2-methylnaphthalene-1,4-dioneAppearance:white powder Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By S

    Nanjing Raymon Biotech Co., Ltd. is specialized in developing and marketing middle & high level pharmaceutical intermediates. We are supplying different categories of high-quality

  • Nanjing Raymon Biotech Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:86-025-52181296

    Address:Block B, No. 918, Shuanglong Avenue

       Inquiry Now

  • CHLOROPLUMBAGIN

  • Casno:

    21890-57-3

    CHLOROPLUMBAGIN

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    1.Fast and safety delivery by well-reputed shipping line;2.we have our own chemical laboratory and factory3.Reasonable price, excellent quality and attentive service.4.prompt reply.we can reply your inquiry within 12 hours.5.sample free(depends on pr

    We are a manufacturer and trader in China, with 10 years of experience in the export of chemical and pharmaceutical raw materials and 320 employees. We are all promoted on Made in

  • Hebei Zhaojun New Material Technology Co., LTD

     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:+8617320695765

    Address:Qiu County gucheng ying Town Zhang Zhang Lu villag

       Inquiry Now

  • 21890-57-3

  • Casno:

    21890-57-3

    21890-57-3

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

    Supply top quality products with a reasonable price Application:api

    Hebei Ruishun Trade Co.,Ltd registered capital one million, we have a production of pharmaceutical raw materials, pharmaceutical raw materials factory reagent r&d center, we do

  • Hebei Ruishun Trade Co.,Ltd

    China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:+86-311-68037669

    Address:WanDa commerce building ,yuhua district

       Inquiry Now

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