Cysteine [Cys] Amino Acids & Derivatives

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Boc-S-tert-butylthio-L-cysteine

Purity:

≥ 99.5% (Chiral purity)

Synonym:

Boc-L-Cys(StBu)-OH

Catalog Number:

12863

Purity Limit:

≥ 99.5% (Chiral purity)

CAS Number:

30044-61-2

MDL NO:

MFCD00084687

Molecular Formula:

C₁₂H₂₃NO₄S₂

Molecular Weight:

309.45

Specification Sheet SDS
Fmoc-S-tert-butoxycarbonylmethyl-L-cysteine

Purity:

≥ 97% (HPLC)

Synonym:

Fmoc-L-Cys(t-butoxycarbonylmethyl)-OH

Catalog Number:

11626

Purity Limit:

≥ 97% (HPLC)

CAS Number:

269730-62-3

MDL NO:

MFCD02094571

Molecular Formula:

C₂₄H₂₇NO₆S

Molecular Weight:

457.55

Specification Sheet SDS
Fmoc-S-4-methoxytrityl-L-cysteine

Purity:

≥ 99% (HPLC)

Synonym:

Fmoc-L-Cys(Mmt)-OH

Catalog Number:

03699

Purity Limit:

≥ 99% (HPLC)

CAS Number:

177582-21-7

MDL NO:

MFCD00270541

Molecular Formula:

C₃₈H₃₃NO₅S

Molecular Weight:

615.7

Specification Sheet SDS
Fmoc-S-trityl-D-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-D-Cys(Trt)-OH

Catalog Number:

02065

Purity Limit:

≥ 98% (HPLC)

CAS Number:

167015-11-4

MDL NO:

MFCD00151922

Molecular Formula:

C₃₇H₃₁NO₄S

Molecular Weight:

585.7

Specification Sheet SDS
Fmoc-S-trityl-L-cysteine

Purity:

≥ 99% (HPLC)

Synonym:

Fmoc-L-Cys(Trt)-OH

Catalog Number:

00177

Purity Limit:

≥ 99% (HPLC)

CAS Number:

103213-32-7

MDL NO:

MFCD00038538

Molecular Formula:

C₃₇H₃₁NO₄S

Molecular Weight:

585.7

Specification Sheet SDS
Acetyl-L-cysteine, from Non-animal source

Grade:

Meets USP specification (Manufactured as per GMP)

Purity:

98 - 102% (Assay)

Synonym:

Ac-L-Cys-OH

Catalog Number:

29880

Grade:

Meets USP specification (Manufactured as per GMP)

Purity Limit:

98 - 102% (Assay)

CAS Number:

616-91-1

MDL NO:

MFCD00004880

Molecular Formula:

C₅H₉NO₃S

Molecular Weight:

163.2

Specification Sheet SDS
S-Benzyl-D-cysteine

Purity:

≥ 99% (HPLC)

Synonym:

D-Cys(Bzl)-OH

Catalog Number:

03048

Purity Limit:

≥ 99% (HPLC)

CAS Number:

23032-53-3

MDL NO:

MFCD00077103

Molecular Formula:

C₁₀H₁₃NO₂S

Molecular Weight:

211.3

Specification Sheet SDS
Fmoc-S-tert-butyl-L-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(tBu)-OH

Catalog Number:

02401

Purity Limit:

≥ 98% (HPLC)

CAS Number:

67436-13-9

MDL NO:

MFCD00037130

Molecular Formula:

C₂₂H₂₅NO₄S

Molecular Weight:

399.5

Specification Sheet SDS
S-Trityl-L-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

L-Cys(Trt)-OH

Catalog Number:

01404

Purity Limit:

≥ 98% (HPLC)

CAS Number:

2799-07-7

MDL NO:

MFCD00002611

Molecular Formula:

C₂₂H₂₁NO₂S

Molecular Weight:

363.5

Specification Sheet SDS
Acetyl-L-cysteine

Purity:

≥ 99% (Assay)

Synonym:

Ac-L-Cys-OH

Catalog Number:

00839

Purity Limit:

≥ 99% (Assay)

CAS Number:

616-91-1

MDL NO:

MFCD00004880

Molecular Formula:

C₅H₉NO₃S

Molecular Weight:

163.2

Specification Sheet SDS
L-Cysteine

Purity:

≥ 99% (Assay)

Synonym:

L-Cys-OH

Catalog Number:

00437

Purity Limit:

≥ 99% (Assay)

CAS Number:

52-90-4

MDL NO:

MFCD00064306

Molecular Formula:

C₃H₇NO₂S

Molecular Weight:

121.16

Specification Sheet SDS
L-Cysteine hydrochloride monohydrate

Grade:

Meets USP specification

Purity:

98.5 - 101.5% (Assay on dried basis)

Synonym:

L-Cys-OH·HCl·H2O

Catalog Number:

00085

Grade:

Meets USP specification

Purity Limit:

98.5 - 101.5% (Assay on dried basis)

CAS Number:

7048-04-6

MDL NO:

MFCD00065606

Molecular Formula:

C₃H₇NO₂S·HCl·H₂O

Molecular Weight:

175.63

Specification Sheet SDS
S-(Methyl-o-nitropiperonyl)-L-Cysteine

Purity:

≥ 98%

Synonym:

H-Cys(methyl-o-nitropiperonyl)-OH

Catalog Number:

47699

Purity Limit:

≥ 98%

CAS Number:

1551078-43-3

Molecular Formula:

C₁₂H₁₄N₂O₆S

Molecular Weight:

314.3

SDS
Se-(Methyl-o-nitropiperonyl)-selenocysteine · TFA

Purity:

≥ 98%

Synonym:

H-Sec(Methyl-o-nitropiperonyl)-OH · TFA

Catalog Number:

47698

Purity Limit:

≥ 98%

CAS Number:

2235373-48-3, 2235373-47-2

Molecular Formula:

C₁₄H₁₅F₃N₂O₈Se

Molecular Weight:

475.2

SDS
Acetyl-L-cysteine, from Non-animal source

Grade:

Japanese Standards of Quasi-drug Ingredients

Purity:

≥ 98% (Assay)

Synonym:

Ac-L-Cys-OH

Catalog Number:

46513

Grade:

Japanese Standards of Quasi-drug Ingredients

Purity Limit:

≥ 98% (Assay)

CAS Number:

616-91-1

MDL NO:

MFCD00004880

Molecular Formula:

C₅H₉NO₃S

Molecular Weight:

163.2

Specification Sheet SDS
Fmoc-L-Cys(Phacm)-OH

Purity:

≥ 99.5% (Chiral HPLC)

Synonym:

Nα-(9-Fluorenylmethyloxycarbonyl)-S-Phenylacetylaminomethyl)-L-cysteine

Catalog Number:

33078

Purity Limit:

≥ 99.5% (Chiral HPLC)

CAS Number:

159680-21-4

MDL NO:

MFCD00797550

Molecular Formula:

C₂₇H₂₆N₂O₅S

Molecular Weight:

490.6

Specification Sheet SDS
L-Cysteine hydrochloride monohydrate from non-animal source

Purity:

≥ 99% (Titration: anhydrous basis)

Synonym:

L-Cys-OH·HCl·H2O

Catalog Number:

31108

Purity Limit:

≥ 99% (Titration: anhydrous basis)

CAS Number:

7048-04-6

MDL NO:

MFCD00065606

Molecular Formula:

C₃H₇NO₂S·HCl·H₂O

Molecular Weight:

175.63

Specification Sheet SDS
Fmoc-S-4-methyltrityl-D-cysteine

Purity:

≥ 99% (HPLC)

Synonym:

Fmoc-D-Cys(Mtt)-OH

Catalog Number:

31113

Purity Limit:

≥ 99% (HPLC)

CAS Number:

252206-29-4

MDL NO:

MFCD14155676

Molecular Formula:

C₃₈H₃₃NO₄S

Molecular Weight:

599.75

Specification Sheet SDS
N^α-Fmoc-S-Palmitoyl-L-cysteine

Purity:

≥ 99% (HPLC, TLC)

Synonym:

Fmoc-L-Cys(Palm)-OH

Catalog Number:

30533

Purity Limit:

≥ 99% (HPLC, TLC)

CAS Number:

824955-27-3

MDL NO:

MFCD02094405

Molecular Formula:

C₃₄H₄₇NO₅S

Molecular Weight:

581.8

Specification Sheet SDS
S-Trityl-D-Cysteine tert-butyl ester hydrochloride

Purity:

≥ 99% (HPLC)

Synonym:

H-D-Cys(Trt)-OtBu·HCl

Catalog Number:

30464

Purity Limit:

≥ 99% (HPLC)

CAS Number:

439089-10-8

MDL NO:

MFCD22989445

Molecular Formula:

C₂₆H₂₉NO₂S·HCl

Molecular Weight:

456.0

Specification Sheet SDS
S-Trityl-L-Cysteine tert-butyl ester hydrochloride

Purity:

≥ 99% (HPLC)

Synonym:

H-L-Cys(Trt)-OtBu·HCl

Catalog Number:

30455

Purity Limit:

≥ 99% (HPLC)

CAS Number:

158009-03-1

MDL NO:

MFCD21363202

Molecular Formula:

C₂₆H₃₀ClNO₂S

Molecular Weight:

456.0

Specification Sheet SDS
D-Cysteine ethyl ester hydrochloride

Purity:

≥ 98.5% (HPLC)

Synonym:

D-Cys-OEt·HCl

Catalog Number:

29770

Purity Limit:

≥ 98.5% (HPLC)

CAS Number:

75521-14-1

MDL NO:

MFCD12674805

Molecular Formula:

C₅H₁₁NO₂S·HCl

Molecular Weight:

185.7

Specification Sheet SDS
R-Fmoc-2-amino-3-(3-(Boc-amino)-propylsulfanyl)-propionic acid

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(3-(Boc-amino)-propyl)-OH

Catalog Number:

29641

Purity Limit:

≥ 98% (HPLC)

CAS Number:

173963-91-2

MDL NO:

MFCD01318742

Molecular Formula:

C₂₆H₃₂N₂O₆S

Molecular Weight:

500.61

Specification Sheet SDS
R-Fmoc-2-amino-3-(2-tert-butoxycarbonyl-ethylsulfanyl)-propionic acid

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(tert-butoxycarbonylethyl)-OH

Catalog Number:

29637

Purity Limit:

≥ 98% (HPLC)

CAS Number:

685863-48-3

MDL NO:

MFCD18782825

Molecular Formula:

C₂₅H₂₉NO₆S

Molecular Weight:

471.57

Specification Sheet SDS
(R)-Fmoc-2-amino-3-propargylsulfanyl-propionic acid

Purity:

≥ 97% (HPLC)

Synonym:

Fmoc-L-Cys(propargyl)-OH

Catalog Number:

29638

Purity Limit:

≥ 97% (HPLC)

CAS Number:

1354752-76-3

MDL NO:

MFCD26793605

Molecular Formula:

C₂₁H₁₉NO₄S

Molecular Weight:

381.45

Specification Sheet SDS
R-Boc-2-amino-3-phenylsulfanyl-propionic acid

Purity:

≥ 99% (HPLC)

Synonym:

Boc-L-Cys(phenyl)-OH

Catalog Number:

29586

Purity Limit:

≥ 99% (HPLC)

CAS Number:

163705-28-0

MDL NO:

MFCD08063988

Molecular Formula:

C₁₄H₁₉NO₄S

Molecular Weight:

297.37

Specification Sheet SDS
(R-Boc-2-amino-3-propargylsulfanyl-propionic acid·DCHA

Purity:

≥ 98% (HPLC)

Synonym:

Boc-L-Cys(propargyl)-OH·DCHA

Catalog Number:

29585

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD26793599

Molecular Formula:

C₁₁H₁₇NO₄S·C₁₂H₂₃N

Molecular Weight:

440.64

Specification Sheet SDS
R-Fmoc-2-amino-3-dodecylsulfanyl-propionic acid

Purity:

≥ 99% (HPLC)

Synonym:

Fmoc-L-Cys(dodecyl)-OH

Catalog Number:

29690

Purity Limit:

≥ 99% (HPLC)

CAS Number:

1310682-09-7

MDL NO:

MFCD09998733

Molecular Formula:

C₃₀H₄₁NO₄S

Molecular Weight:

511.72

Specification Sheet SDS
R-Fmoc-2-amino-3-phenylsulfanyl-propionic acid

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(phenyl)-OH

Catalog Number:

29639

Purity Limit:

≥ 98% (HPLC)

CAS Number:

488761-06-4

MDL NO:

MFCD08063325

Molecular Formula:

C₂₄H₂₁NO₄S

Molecular Weight:

419.5

Specification Sheet SDS
R-Fmoc-2-amino-3-(3-tert-butoxycarbonyl-propylsulfanyl)propionic acid

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(tert-butoxycarbonylpropyl)-OH

Catalog Number:

29323

Purity Limit:

≥ 98% (HPLC)

CAS Number:

102971-73-3

MDL NO:

MFCD11226818

Molecular Formula:

C₂₆H₃₁NO₆S

Molecular Weight:

485.6

Specification Sheet SDS
L-Cysteine from non-animal source

Purity:

≥ 98% (Assay)

Catalog Number:

24758

Purity Limit:

≥ 98% (Assay)

CAS Number:

52-90-4

MDL NO:

MFCD00064306

Molecular Formula:

C₃H₇NO₂S

Molecular Weight:

121.16

Specification Sheet SDS
DL-Penicillamine

Purity:

≥ 99% (HPLC)

Synonym:

DL-Pen-OH

Catalog Number:

21824

Purity Limit:

≥ 99% (HPLC)

CAS Number:

52-66-4

MDL NO:

MFCD00004856

Molecular Formula:

C₅H₁₁NO₂S

Molecular Weight:

149.21

Specification Sheet SDS
D-Cysteine

Purity:

98 - 101% (Titration)

Synonym:

(S-2-Amino-3-mercaptopropionic acid

Catalog Number:

21754

Purity Limit:

98 - 101% (Titration)

CAS Number:

921-01-7

MDL NO:

MFCD00066461

Molecular Formula:

C₃H₇NO₂S

Molecular Weight:

121.16

Specification Sheet SDS
L-Cysteic acid monohydrate

Purity:

≥ 99% (Assay)

Synonym:

(R)-2-Amino-3-sulfopropionic acid

Catalog Number:

21698

Purity Limit:

≥ 99% (Assay)

CAS Number:

23537-25-9

MDL NO:

MFCD00149544

Molecular Formula:

C₃H₇NO₅S·H₂O

Molecular Weight:

187.17

Specification Sheet SDS
DL-Cysteine

Purity:

≥ 97% (Assay)

Synonym:

DL-2-Amino-3-mercaptopropionic acid

Catalog Number:

21654

Purity Limit:

≥ 97% (Assay)

CAS Number:

3374-22-9

MDL NO:

MFCD00004881

Molecular Formula:

C₃H₇NO₂S

Molecular Weight:

121.16

Specification Sheet SDS
DL-Cystein hydrochloride hydrate

Synonym:

DL-Cys-OH·HCl·H2O

Catalog Number:

21624

CAS Number:

116797-51-4

MDL NO:

MFCD00151030

Molecular Formula:

C₃H₇NO₂S·HCl·H₂O

Molecular Weight:

175.64

SDS
DL-Cysteine hydrochloride

Synonym:

DL-2-Amino-3-mercaptopropionic acid hydrochloride

Catalog Number:

21500

CAS Number:

10318-18-0

MDL NO:

MFCD00064552

Molecular Formula:

C₃H₇NO₂S·HCl

Molecular Weight:

157.62

SDS
S-2-Nitrophenyl-L-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

H-Cys(Sonp)-OH

Catalog Number:

21460

Purity Limit:

≥ 98% (HPLC)

CAS Number:

60115-45-9

MDL NO:

MFCD04972096

Molecular Formula:

C₉H₁₀N₂O₄S

Molecular Weight:

242.25

Specification Sheet SDS
Fmoc-D-cysteine hydrate

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-D-Cys-OH·H2O

Catalog Number:

16183

Purity Limit:

≥ 98% (HPLC)

CAS Number:

157355-80-1

MDL NO:

MFCD18253022

Molecular Formula:

C₁₈H₁₇NO₄S·H₂O

Molecular Weight:

361.5

Specification Sheet SDS
Boc-D-cysteine

Purity:

≥ 99% (Assay by titration)

Synonym:

Boc-D-Cys-OH

Catalog Number:

16133

Purity Limit:

≥ 99% (Assay by titration)

CAS Number:

149270-12-2

MDL NO:

MFCD05663721

Molecular Formula:

C₈H₁₅NO₄S

Molecular Weight:

221.3

Specification Sheet SDS
Fmoc-S-4-methoxytrityl-D-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-D-Cys(Mmt)-OH

Catalog Number:

14848

Purity Limit:

≥ 98% (HPLC)

CAS Number:

1198791-73-9

MDL NO:

MFCD02094091

Molecular Formula:

C₃₈H₃₃NO₅S

Molecular Weight:

615.75

Specification Sheet SDS
Fmoc-S-allyloxycarbonylamidomethyl-L-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(Allocam)-OH

Catalog Number:

14440

Purity Limit:

≥ 98% (HPLC)

CAS Number:

232953-09-2

MDL NO:

MFCD00273447

Molecular Formula:

C₂₃H₂₄N₂O₆S

Molecular Weight:

456.51

Specification Sheet SDS
Boc-S-allyloxy-amidomethyl-L-cysteine dicyclohexylamine salt

Purity:

≥ 98% (HPLC)

Synonym:

Boc-L-Cys(Allocam)-OH·DCHA

Catalog Number:

14439

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD00273400

Molecular Formula:

C₁₃H₂₂N₂O₆S

Molecular Weight:

334.39

Specification Sheet SDS
S-9-Fluorenylmethyl-L-cysteine tert-butyl ester hydrochloride

Purity:

≥ 98% (HPLC)

Synonym:

L-Cys(Fm)-OtBu·HCl

Catalog Number:

14331

Purity Limit:

≥ 98% (HPLC)

MDL NO:

MFCD08458522

Molecular Formula:

C₂₁H₂₅NO₂S·HCl

Molecular Weight:

391.9

Specification Sheet SDS
Fmoc-L-cysteine hydrate

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys-OH·H2O

Catalog Number:

14009

Purity Limit:

≥ 98% (HPLC)

CAS Number:

135248-89-4

MDL NO:

MFCD13184915

Molecular Formula:

C₁₈H₁₇NO₄S·H₂O

Molecular Weight:

361.4

Specification Sheet SDS
L-Cysteine methyl ester hydrochloride

Purity:

≥ 98% (Assay)

Synonym:

L-Cys-OMe·HCl

Catalog Number:

12007

Purity Limit:

≥ 98% (Assay)

CAS Number:

18598-63-5

MDL NO:

MFCD00038985

Molecular Formula:

C₄H₉NO₂S·HCl

Molecular Weight:

171.68

Specification Sheet SDS
Fmoc-L-cysteine amide

Purity:

≥ 99.5% (Chiral HPLC)

Synonym:

Fmoc-L-Cys-NH2

Catalog Number:

12605

Purity Limit:

≥ 99.5% (Chiral HPLC)

CAS Number:

623177-62-8

MDL NO:

MFCD03788160

Molecular Formula:

C₁₈H₁₈N₂O₃S

Molecular Weight:

342.4

Specification Sheet SDS
S-4-Methoxyltrityl-L-cysteine

Purity:

≥ 97% (HPLC)

Synonym:

L-Cys(Mmt)-OH

Catalog Number:

12006

Purity Limit:

≥ 97% (HPLC)

CAS Number:

177582-20-6

MDL NO:

MFCD05663448

Molecular Formula:

C₂₃H₂₃NO₃S

Molecular Weight:

393.28

Specification Sheet SDS
Fmoc-S-xanthyl-L-cysteine

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(Xan)-OH

Catalog Number:

11958

Purity Limit:

≥ 98% (HPLC)

CAS Number:

186829-25-4

MDL NO:

MFCD01862337

Molecular Formula:

C₃₁H₂₅NO₅S

Molecular Weight:

523.58

Specification Sheet SDS
Fmoc-S-acetamidomethyl-L-cysteine N-hydroxysuccinimide ester

Purity:

≥ 98% (HPLC)

Synonym:

Fmoc-L-Cys(Acm)-OSu

Catalog Number:

11956

Purity Limit:

≥ 98% (HPLC)

CAS Number:

182410-75-9

MDL NO:

MFCD01076143

Molecular Formula:

C₂₅H₂₅N₃O₇S

Molecular Weight:

511.54

Specification Sheet SDS

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