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Chemical materials

Oxazolo[4，5-b]pyridine-2(3H)-thione ≥98%

Oxazolo[4，5-b]pyridine-2(3H)-thione ≥98%

O690461-250MG / 250MG
CAS No.：53052-06-5
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O-(4-nitrobenzyl)hydroxylamine ≥98%

O-(4-nitrobenzyl)hydroxylamine ≥98%

O690494-100MG / 100MG
CAS No.：1944-96-3
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O-(4-nitrobenzyl)hydroxylamine ≥98%

O-(4-nitrobenzyl)hydroxylamine ≥98%

O690494-1G / 1G
CAS No.：1944-96-3
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O-(4-nitrobenzyl)hydroxylamine ≥98%

O-(4-nitrobenzyl)hydroxylamine ≥98%

O690494-250MG / 250MG
CAS No.：1944-96-3
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4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

O690508-100G / 100G
CAS No.：1703-61-3
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4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

O690508-1G / 1G
CAS No.：1703-61-3
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4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

O690508-25G / 25G
CAS No.：1703-61-3
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4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

O690508-500G / 500G
CAS No.：1703-61-3
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4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

4-oxocyclopentane-1，2-dicarboxylic acid ≥98%

O690508-5G / 5G
CAS No.：1703-61-3
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3,4-Dihydroxyphenylpyruvic acid ≥97%

3,4-Dihydroxyphenylpyruvic acid ≥97%

O690513-100MG / 100MG
CAS No.：4228-66-4
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3,4-Dihydroxyphenylpyruvic acid ≥97%

3,4-Dihydroxyphenylpyruvic acid ≥97%

O690513-1G / 1G
CAS No.：4228-66-4
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3,4-Dihydroxyphenylpyruvic acid ≥97%

3,4-Dihydroxyphenylpyruvic acid ≥97%

O690513-250MG / 250MG
CAS No.：4228-66-4
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2-Oxa-5-azaspiro[3.4]octane ≥95%

2-Oxa-5-azaspiro[3.4]octane ≥95%

O690607-2.5MG / 2.5MG
CAS No.：90207-55-9
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2-Oxa-5-azaspiro[3.4]octane ≥95%

2-Oxa-5-azaspiro[3.4]octane ≥95%

O690607-5MG / 5MG
CAS No.：90207-55-9
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(2E，4E)-Octa-2，4-dien-1-ol ≥93%

(2E，4E)-Octa-2，4-dien-1-ol ≥93%

O690714-1G / 1G
CAS No.：18409-20-6
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Oxirane-2，3-dicarboxylic acid ≥95%

Oxirane-2，3-dicarboxylic acid ≥95%

O690760-100MG / 100MG
CAS No.：3272-11-5
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Oxirane-2，3-dicarboxylic acid ≥95%

Oxirane-2，3-dicarboxylic acid ≥95%

O690760-250MG / 250MG
CAS No.：3272-11-5
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Oxirane-2，3-dicarboxylic acid ≥95%

Oxirane-2，3-dicarboxylic acid ≥95%

O690760-25MG / 25MG
CAS No.：3272-11-5
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5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

O690824-1G / 1G
CAS No.：49597-17-3
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5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

O690824-250MG / 250MG
CAS No.：49597-17-3
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5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

5-Oxo-1-phenyl-2，5-dihydro-1H-pyrazole-3-carboxylic acid ≥95%

O690824-5G / 5G
CAS No.：49597-17-3
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O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O690856-100MG / 100MG
CAS No.：184591-51-3
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O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O690856-1G / 1G
CAS No.：184591-51-3
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O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O-(2-Nitrobenzyl)-L-tyrosine ≥98%

O690856-250MG / 250MG
CAS No.：184591-51-3
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1-(4-Butylphenyl)-5-oxopyrrolidine-3-carboxylic acid ≥95%

1-(4-Butylphenyl)-5-oxopyrrolidine-3-carboxylic acid ≥95%

O690909-100MG / 100MG
CAS No.：63674-57-7
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1-(4-Butylphenyl)-5-oxopyrrolidine-3-carboxylic acid ≥95%

1-(4-Butylphenyl)-5-oxopyrrolidine-3-carboxylic acid ≥95%

O690909-250MG / 250MG
CAS No.：63674-57-7
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O-(2-Chlorobenzyl)hydroxylamine hydrochloride AR

O-(2-Chlorobenzyl)hydroxylamine hydrochloride AR

O690960-100MG / 100MG
CAS No.：5555-48-6
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4-Oxo-4，5，6，7-Tetrahydrobenzofuran-2-Carboxylic Acid ≥98%

4-Oxo-4，5，6，7-Tetrahydrobenzofuran-2-Carboxylic Acid ≥98%

O690991-100MG / 100MG
CAS No.：108249-48-5
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Octathiocane ≥95%

Octathiocane ≥95%

O691104-10G / 10G
CAS No.：10544-50-0
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Octathiocane ≥95%

Octathiocane ≥95%

O691104-1G / 1G
CAS No.：10544-50-0
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Octathiocane ≥95%

Octathiocane ≥95%

O691104-25G / 25G
CAS No.：10544-50-0
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Octathiocane ≥95%

Octathiocane ≥95%

O691104-5G / 5G
CAS No.：10544-50-0
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2-OXA-9-AZASPIRO[5.5]UNDECANE HCL ≥95%

2-OXA-9-AZASPIRO[5.5]UNDECANE HCL ≥95%

O691144-250MG / 250MG
CAS No.：374795-48-9
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2-OXA-9-AZASPIRO[5.5]UNDECANE HCL ≥95%

2-OXA-9-AZASPIRO[5.5]UNDECANE HCL ≥95%

O691144-50MG / 50MG
CAS No.：374795-48-9
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3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

O691208-1G / 1G
CAS No.：16013-14-2
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3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

O691208-250MG / 250MG
CAS No.：16013-14-2
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3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

3-(4-nitrophenyl)-1，2，4-oxadiazole ≥98%

O691208-5G / 5G
CAS No.：16013-14-2
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6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

O691236-10G / 10G
CAS No.：23148-51-8
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6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

O691236-1G / 1G
CAS No.：23148-51-8
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6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

O691236-250MG / 250MG
CAS No.：23148-51-8
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6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

6-(4-Chlorophenyl)-2-oxo-1，2-dihydropyridine-3-carbonitrile ≥97%

O691236-5G / 5G
CAS No.：23148-51-8
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(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

O691288-100MG / 100MG
CAS No.：1089759-42-1
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(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

O691288-1G / 1G
CAS No.：1089759-42-1
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(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

(9aS)-Octahydropyrazino[2，1-c][1，4]oxazine ≥98%

O691288-250MG / 250MG
CAS No.：1089759-42-1
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4-Oxo-4-(phenylamino)but-2-enoic acid ≥95%

4-Oxo-4-(phenylamino)but-2-enoic acid ≥95%

O691372-100MG / 100MG
CAS No.：37902-58-2
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4-Oxo-4-(phenylamino)but-2-enoic acid ≥95%

4-Oxo-4-(phenylamino)but-2-enoic acid ≥95%

O691372-250MG / 250MG
CAS No.：37902-58-2
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Octahydro-2H-pyrano[3，2-c]pyridine ≥95%

Octahydro-2H-pyrano[3，2-c]pyridine ≥95%

O691406-1G / 1G
CAS No.：71671-81-3
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Octahydro-2H-pyrano[3，2-c]pyridine ≥95%

Octahydro-2H-pyrano[3，2-c]pyridine ≥95%

O691406-250MG / 250MG
CAS No.：71671-81-3
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Octahydro-2H-Quinolizine-3-Carboxylic Acid Ethyl Ester ≥98%

Octahydro-2H-Quinolizine-3-Carboxylic Acid Ethyl Ester ≥98%

O691506-1G / 1G
CAS No.：76211-05-7
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4，4’-Oxybis(N，N-diethylbenzamide) ≥97%

4，4’-Oxybis(N，N-diethylbenzamide) ≥97%

O691560-1G / 1G
CAS No.：312748-94-0
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Taipei Branch

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Telephone 03-494-6939
Fax 03-493-0687
Mail chungli@echochemical.com

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Telephone 037-621-088
Fax 037-615-096
Mail miaoli@echochemical.com

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Address 15F-2, No. 218, Section 1, Wenxin Road, Nantun District, Taichung City
Telephone 04-2472-8859
Fax 04-2472-8825
Mail taichung@echochemical.com

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Address No. 33, Lane 63, Yanzhou 1st Street, Yongkang District, Tainan City
Telephone 06-243-6589
Fax 06-253-8208
Mail tainan@echochemical.com

Kaohsiung Branch

Address No. 479, Fengding Road, Fengshan District, Kaohsiung City
Telephone 07-753-9988
Fax 07-753-1958
Mail kaohsiung@echochemical.com
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