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Chemical materials

N-Acetyl-S-(2-carbamoylethyl)-L-cysteine

ULC7780 /
CAS No.：81690-92-8
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Cysteine Impurity 2

ULC7781 /
CAS No.：14226-97-2
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Cysteine Impurity 1 Sodium Salt

ULC7782 /
CAS No.：88933-48-6
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S-Acetyl-L-Cysteine HCl

ULC7783 /
CAS No.：66185-37-3
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S-Acetyl-D-Cysteine HCl

ULC7784 /
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Cysteine Impurity 3

ULC7785 /
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Acetylcysteine Impurity 20-d3 Sodium Salt (Mixture of Z and E Isomers)

ULC7786 /
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Acetylcysteine Impurity 20 Sodium Salt (Mixture of Z and E Isomers)

ULC7787 /
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Cysteine Impurity 4

ULC7788 /
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Cysteine Impurity 5 ((R,S)-N-Acetyl-S-(2-hydroxy-2-methyl-3-buten-1-yl)-L-Cysteine)

ULC7789 /
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S-Methyl-L-Cysteine S-Oxide

ULC779 /
CAS No.：6853-87-8
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Cysteine Impurity 6

ULC7790 /
CAS No.：2002427-60-1
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Cysteine Impurity 7 ((R,S)-N-Acetyl-S-(2-hydroxy-3-methyl-3-buten-1-yl)-L-Cysteine)

ULC7791 /
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Acetylcysteine Impurity 21

ULC7792 /
CAS No.：1795785-99-7
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Acetylcysteine Impurity 22 Sodium Salt

ULC7793 /
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(4S)-2-Methyl-4-Thiazolidinecarboxylic Acid

ULC7794 /
CAS No.：205985-91-7
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Cysteine Impurity 8

ULC7795 /
CAS No.：851189-30-5
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Cysteine Impurity 9 Trifluoroacetate

ULC7796 /
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N,S-Carboxymethyl D-Cysteine HCl

ULC7797 /
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Acetylcysteine EP Impurity C Disodium Salt

ULC7798 /
CAS No.：1376779-04-2
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(4R)-2-Hydroxy-2-methyl-4-thiazolidinecarboxylic Acid

ULC7799 /
CAS No.：1027285-74-0
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Cefoperazone EP Impurity A

ULC781 /
CAS No.：73240-08-1
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Cefoperazone Impurity 3

ULC7810 /
CAS No.：22818-40-2
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Cefoperazone Impurity 4

ULC7811 /
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Cefoperazone-d3

ULC7812 /
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Cefoperazone Impurity 5

ULC7813 /
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Cefoperazone Impurity 6

ULC7814 /
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Cefoperazone Impurity 7

ULC7815 /
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Cefoperazone EP Impurity B

ULC7816 /
CAS No.：711598-76-4
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Cefoperazone Impurity 8

ULC7817 /
CAS No.：1204325-21-2
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Cefoperazone Impurity 9

ULC7818 /
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Cefoperazone

ULC7819 /
CAS No.：62893-19-0
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Cefoperazone Impurity 10

ULC7820 /
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Cefoperazone Impurity 11

ULC7821 /
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Cefoperazone Impurity 12

ULC7822 /
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Cefoperazone Impurity 13

ULC7823 /
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Cefoperazone Impurity 14

ULC7824 /
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Cefoperazone Impurity 15

ULC7825 /
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Cefoperazone Impurity 16

ULC7826 /
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Cefoperazone Impurity 17

ULC7827 /
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Cefoperazone Impurity 18

ULC7828 /
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Cefoperazone Impurity 19

ULC7829 /
CAS No.：348088-68-6
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Cefoperazone EP Impurity C (Cefamandole EP Impurity D)

ULC783 /
CAS No.：13183-79-4
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N-Carbamoyl-D-p-hydroxyphenylglycine

ULC7830 /
CAS No.：68780-35-8
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Cefoperazone Impurity 20

ULC7831 /
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Cefoperazone Impurity 21

ULC7832 /
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Cefoperazone Impurity 22

ULC7833 /
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Cefoperazone Impurity 23

ULC7834 /
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Cefoperazone-d5

ULC7835 /
CAS No.：2410425-70-4
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Cefoperazone Impurity 24

ULC7836 /
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Taipei Branch

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

Head Office / Zhumen Branch

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

Taichung Branch

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

Tainan Branch

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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