羧甲基半胱氨酸

Name: 羧甲基半胱氨酸
Brand: Jinan Shenghe Chemical Co., Ltd.

CAS 638-23-3C5H9NO4SMW 179.20

羧甲基半胱氨酸 (CAS No. 638-23-3) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include 有机化学品. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number638-23-3

Molecular FormulaC5H9NO4S

Molecular Weight179.20

Melting Point204 - 207 °C

LogP-3.1

Purity按批次COA提供(不公开发布)

Packaging按订单/批次确认(不公开发布)

Applications有机化学品

Category有机化学品

Where it is used

有机化学品

Packaging & Supply

Packaging按订单/批次确认(不公开发布)

Purity按批次COA提供(不公开发布)

StorageSealed, cool and dry place

Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of 羧甲基半胱氨酸?

The CAS number of 羧甲基半胱氨酸 is 638-23-3.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of 羧甲基半胱氨酸?

Main applications include 有机化学品.

How do I buy 羧甲基半胱氨酸 or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

S-Carboxymethyl-L-Cysteine · CAS 638-23-3 · C5H9NO4S. UNII 4252LRM78Q. Melting Point: 204 - 207 °C.

Identification

CAS Registry Number	638-23-3
PubChem CID	1080
Molecular formula	C5H9NO4S
IUPAC name	2-amino-3-(carboxymethylsulfanyl)propanoic acid
UNII (FDA)	4252LRM78Q

Computed Descriptors

Molecular Weight	179.20
XLogP3	-3.1
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	5
Exact Mass	179.02522894
Monoisotopic Mass	179.02522894
Topological Polar Surface Area	126
Heavy Atom Count	11
Formal Charge	0

Physical & Chemical Properties

Melting Point	204 - 207 °C

Physical description & handling notes

Solid
138.2 Å² [M+Na]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
137.1 Å² [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
136.7 Å² [M+Na-2H]- [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
130 Å² [M-H]- [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]

GHS Hazard Classification

Reported hazard statements	H302 (100%), H319 (100%)

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Synonyms

25390-17-4; S-(Carboxymethyl)cysteine; 5-Amino-3-thiadihexanoic acid; Carbocysteine, DL-; S-(Carboxymethyl)-(RS)-cysteine; DL-3-(Carboxymethylthio)alanine; 4252LRM78Q; Carbocysteine dl-; RefChem:1098234; 246-934-4; 2387-59-9; (RS)-Carbocisteine; S-Carboxymethylcysteine; S-(Carboxymethyl)-DL-cysteine; 2-amino-3-[(carboxymethyl)sulfanyl]propanoic acid; Thiodril

Frequently Asked Questions

What are the CAS number and molecular formula of S-Carboxymethyl-L-Cysteine?

CAS 638-23-3; molecular formula C5H9NO4S; molecular weight — g/mol.

What other names is S-Carboxymethyl-L-Cysteine known by?

25390-17-4, S-(Carboxymethyl)cysteine, 5-Amino-3-thiadihexanoic acid, Carbocysteine, DL-, S-(Carboxymethyl)-(RS)-cysteine, DL-3-(Carboxymethylthio)alanine.

Is S-Carboxymethyl-L-Cysteine classified as hazardous?

Hazard statements reported: H302, H319.

What are the key physical properties of S-Carboxymethyl-L-Cysteine?

Melting Point: 204 - 207 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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