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30095

Sigma-Aldrich

D-Cysteine

≥99% (RT), for peptide synthesis

Synonym(s):

(S)-2-Amino-3-mercaptopropionic acid

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100 MG
CN¥1,010.80
1 G
CN¥5,062.93

CN¥1,010.80

Available to ship onApril 27, 2025Details

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100 MG
CN¥1,010.80
1 G
CN¥5,062.93

About This Item

Empirical Formula (Hill Notation):
C3H7NO2S
CAS Number:
921-01-7
Molecular Weight:
121.16
Beilstein:
1721407
MDL number:
MFCD00066461
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
57648407
NACRES:
NA.22

CN¥1,010.80

Available to ship onApril 27, 2025Details

Request a Bulk Order

Product Name

D-Cysteine, ≥99% (RT)

Quality Level

100

Assay

≥99% (RT)

form

powder or crystals

optical activity

[α]20/D −7.6±1.0°, c = 5% in 5 M HCl

reaction suitability

reaction type: solution phase peptide synthesis

mp

~230 °C (dec.)

application(s)

peptide synthesis

SMILES string

N[C@H](CS)C(O)=O

InChI

1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1

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1 of 4

This Item
30089P2126168149
D-Cysteine ≥99% (RT)

30095

D-Cysteine

L-Cysteine BioUltra, ≥98.5% (RT)

30089

L-Cysteine

L-Phenylalanine reagent grade, ≥98%

P2126

L-Phenylalanine

L-Cysteine 97%

168149

L-Cysteine

form

powder or crystals

form

powder or crystals

form

powder or crystals

form

solid

assay

≥99% (RT)

assay

≥98.5% (RT)

assay

≥98%

assay

97%

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

mp

~230 °C (dec.)

mp

240 °C (dec.) (lit.)

mp

270-275 °C (dec.) (lit.)

mp

240 °C (dec.) (lit.)

optical activity

[α]20/D −7.6±1.0°, c = 5% in 5 M HCl

optical activity

[α]20/D +8.0±0.5°, c = 5% in 5 M HCl

optical activity

-

optical activity

[α]20/D +6.5±1.5°, c = 2 in 5 M HCl

reaction suitability

reaction type: solution phase peptide synthesis

reaction suitability

-

reaction suitability

-

reaction suitability

reaction type: solution phase peptide synthesis

Application

D-Cysteine has been used in the functionalization of QDs for applications in photocatalysis.[1]
It can also be used in the synthesis of:
  • cysteine-based chiral carbon dots (CDs)[2]
  • D-luciferin and aminoluciferin analogs[3]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Unnatural isomer of cysteine.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    BCCL4729
    BCCK1863
    BCCG3554
    BCCF7591
    BCCC1287

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    Antonia Asimakopoulou et al.
    British journal of pharmacology, 169(4), 922-932 (2013-03-16)
    Hydrogen sulfide (H₂S) is a signalling molecule that belongs to the gasotransmitter family. Two major sources for endogenous enzymatic production of H₂S are cystathionine β synthase (CBS) and cystathionine γ lyase (CSE). In the present study, we examined the selectivity
    Nar Singh Chauhan et al.
    Indian journal of microbiology, 57(3), 299-306 (2017-09-15)
    A metagenomic library of sea sediment metagenome containing 245,000 recombinant clones representing ~ 2.45 Gb of sea sediment microbial DNA was constructed. Two unique arsenic resistance clones, A7 and A12, were identified by selection on sodium arsenite containing medium. Clone A7 showed a
    Jing Wang et al.
    Nanomaterials (Basel, Switzerland), 8(12) (2018-12-14)
    Chiral recognition is of fundamental importance in chemistry and life sciences and the principle of chiral recognition is instructive in chiral separation and enantioselective catalysis. Non-chiral Ag nanoparticles (NPs) conjugated with chiral cysteine (Cys) molecules demonstrate strong circular dichroism (CD)
    Angéla Takács et al.
    Scientific reports, 10(1), 14287-14287 (2020-09-02)
    Bortezomib (BOZ) is a proteasome inhibitor chemotherapeutic agent utilized to treat multiple myeloma and recently offered to cure melanoma. Bortezomib-induced neuropathy is one of the dose-limiting side-effects, which can be treated with antioxidants (e.g. alpha-lipoic acid-ALA and Vitamin B1-vit B1).
    Yusuke Shibui et al.
    Journal of toxicologic pathology, 30(3), 217-229 (2017-08-12)
    Two 4-week repeated-dose toxicity studies were conducted to evaluate the potential toxicity of l-cysteine and d-cysteine. In one study, three groups of 6 male rats were each administered l-cysteine once daily by gavage at doses of 500, 1,000, or 2,000
    View All Related Papers

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