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DL-CYSTINE (3,3,3',3'-D4, 98%)

CAS No.
108641-83-4
Chemical Name:
DL-CYSTINE (3,3,3',3'-D4, 98%)
Synonyms
DL-Cystine-d4;DL-Cystine (3,3,3′,3′-D?, 98%);DL-CYSTINE (3,3,3',3'-D4, 98%)
CBNumber:
CB42728124
Molecular Formula:
C6H12N2O4S2
Molecular Weight:
240.29
MDL Number:
MOL File:
108641-83-4.mol
MSDS File:
SDS
Last updated:2026-05-28 05:23:46

DL-CYSTINE (3,3,3',3'-D4, 98%) Properties

solubility 1N HCl: soluble; Water: slightly soluble
form A solid
CAS Number Unlabeled 923-32-0

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319
Precautionary statements  P264-P280-P305+P351+P338-P337+P313P
NFPA 704
0
2 0

DL-CYSTINE (3,3,3',3'-D4, 98%) price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 30902 DL-Cystine-d4 ≥99%deuteratedforms(d1-d4) 108641-83-4 50mg $107 2026-04-30 Buy
Cayman Chemical 30902 DL-Cystine-d4 ≥99%deuteratedforms(d1-d4) 108641-83-4 100mg $203 2026-04-30 Buy
Cayman Chemical 30902 DL-Cystine-d4 ≥99%deuteratedforms(d1-d4) 108641-83-4 250mg $477 2026-04-30 Buy
ChemScene CS-0376460 DL-Cystine-d4 99.8% 108641-83-4 100mg $238 2026-06-04 Buy
Product number Packaging Price Buy
30902 50mg $107 Buy
30902 100mg $203 Buy
30902 250mg $477 Buy
CS-0376460 100mg $238 Buy

DL-CYSTINE (3,3,3',3'-D4, 98%) Chemical Properties, Uses, Production

Preparation

DL-Cystine-d4 is found in keratin, hair, wool, and gelatin. Industrially, it is produced through hydrolysis extraction. This involves hydrolyzing hair (or feather powder, etc.) with hydrochloric acid, followed by decolorization with activated carbon, filtration, and neutralization with ammonia water to obtain the DL-Cystine-d4.

Description

DL-Cystine-d4 is intended for use as an internal standard for the quantification of cystine by GC- or LC-MS. DL-Cystine is a racemic mixture of D- and L-cystine. D-Cystine is an inactive enantiomer of L-cystine , an oxidized form of cysteine .1

Uses

DL-Cystine-d4 is the deuterium labeled 2-Acetamidobutanoic acid[1].

References

1. Baker, D.H., and Harter, J.M. D-cystine utilization by the chick Poult. Sci. 57(2),562-563(1978).

DL-CYSTINE (3,3,3',3'-D4, 98%) Preparation Products And Raw materials

Raw materials

Preparation Products

DL-CYSTINE (3,3,3',3'-D4, 98%) Suppliers

Global Suppliers ( 11)
Supplier Tel Email Country ProdList Advantage
TianJin Alta Scientific Co., Ltd. 022-65378550-8551 contact@altascientific.com China 2772 58
Reer Technology (Shanghai) Co., LTD 021-64400900 15800436310 bessey@reertech.com China 4097 58
LGC Science (Shanghai) Ltd. 17717235263 offer.de@lgcgroup.com China 19036 58
CHINA ISOTOPE CO., LIMITED 02151600108 13062666369 info@isotopechem.com China 4721 58
Shanghai Yifei Biotechnology Co. , Ltd. 021-65675885 18964387627 customer_service@efebio.com China 11963 58
Xibiao (Shanghai) Technology Co., Ltd 18512111473 18512111473 2238774038@qq.com China 3149 58
DL-CYSTINE (3,3,3',3'-D4, 98%) DL-Cystine-d4 DL-Cystine (3,3,3′,3′-D?, 98%) 108641-83-4