CAS 25691-37-6 (S)-4-Amino-2-(tert-butoxycarbonylamino)butyric Acid molecular structure

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CAS RN: 25691-37-6

(S)-4-Amino-2-(tert-butoxycarbonylamino)butyric Acid

Product Availability

Choose a grade to view its available package options.

5 package records4 with current stock3 grade groups

Grade In stock only

Batch No.	Package	Availability	Inquiry
Batchno.20260306	1g	In stock	Inquiry
Batchno.20250929	25g	In stock	Inquiry
Batchno.20250228	5g	In stock	Inquiry

Batch No.	Package	Availability	Warehouse	Lead Time	Inquiry
Batchno.20250101	1g / 5g / 25g / 100g	Confirm by inquiry	Shanghai, Shandong	8-10 business days	Inquiry

Batch No.	Package	Availability	Warehouse	Lead Time	Inquiry
Batchno.20250921	5g	Out of stock		8-10 business days	Inquiry

Product code: SSC-122109

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Verified Factory Data

Supply Overview & Packaging Options

Packaging options, recorded purity, stock quantity and ship-from location below are generated from the current factory data table for this CAS.

Pack sizes on record: 0.25g, 1g, 5g, 10g, 25g, 500g, 100g
Available purity: >97%
Inventory rows with stock: 7
Bulk packaging: confirmed by inquiry

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Available Pack Sizes & Stock

Specific stock quantities are shown below. Price is not displayed online and is confirmed by inquiry.

Recorded sizes, purity and stock details for CAS 25691-37-6
Pack Size	Recorded Purity	Available Qty	Ship From	Inquiry
0.25g	>97%	5 In Stock	Hong Kong	Inquiry
1g	>97%	5 In Stock	Shanghai	Inquiry
5g	>97%	5 In Stock	Shenzhen	Inquiry
10g	>97%	5 In Stock	Shanghai	Inquiry
25g	>97%	5 In Stock	Hong Kong	Inquiry
500g	>97%	5 In Stock	Shenzhen	Inquiry
100g	>97%	4 In Stock	Hong Kong	Inquiry

25691-37-6 / (2S)-4-azaniumyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoate

Standard CAS: 25691-37-6 Multi CAS: No

Basic Information Computed Properties

Basic Information

CAS

25691-37-6

Multi CAS

Molecular Formula

C9H18N2O4

Molecular Weight

218.250000

Exact Mass

218.126657

SMILES

CC(C)(C)OC(=O)N[C@@H](CC[NH3+])C(=O)[O-]

InChI

InChI=1S/C9H18N2O4/c1-9(2,3)15-8(14)11-6(4-5-10)7(12)13/h6H,4-5,10H2,1-3H3,(H,11,14)(H,12,13)/t6-/m0/s1

InChIKey

MDCPCLPRWLKUIQ-LURJTMIESA-N

Computed Properties

Structural Parameters

Heavy atom count

Fraction Csp3

0.78

Rotatable bonds

H-bond acceptors

H-bond donors

Molar refractivity

50.54

TPSA

106.1

LogP / Solubility

WLOGP

-1.74

MLOGP

-1.53

XLogP3

-1.7

Consensus LogP

-1.66

Log S (ESOL)

0.17

Class (ESOL)

Highly soluble

Log S (Ali)

-0.09

Class (Ali)

Very soluble

Log S (SILICOS-IT)

-0.12

Class (SILICOS-IT)

Very soluble

ADME

GI absorption

Low

BBB permeant

P-gp substrate

CYP1A2 inhibitor

CYP2C19 inhibitor

CYP2C9 inhibitor

CYP2D6 inhibitor

CYP3A4 inhibitor

Log Kp (skin permeation)

-5.29

Drug-likeness / Medicinal Chemistry

Lipinski

Yes

Ghose

Veber

Yes

Egan

Yes

Muegge

Yes

Bioavailability score

0.55

Leadlikeness

Synthetic Accessibility

Applications of CAS 25691-37-6

This compound is commonly used in pharmaceutical research and drug discovery, life science and biochemical research, biochemistry and reagent applications, laboratory reagent and synthesis applications, general chemistry research and laboratory applications. Starshine Chemical supplies CAS 25691-37-6 for R&D and pilot-scale use, with flexible pack sizes and purity grades available.

Physical & Chemical Properties

IUPAC Name

(2S)-4-amino-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoic acid

Safety Information (GHS)

Pictogram(s): GHS05, GHS07. Signal word: Danger.

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

Precautionary statements: P264, P264+P265, P280, P302+P352, P305+P354+P338, P317, P321, P332+P317, and P362+P364 (click each P-code to see the statement)

Request the SDS (Safety Data Sheet) for full hazard and safety documentation.

Storage & Handling

Storage: Keep the container tightly closed in a cool, dry and well-ventilated place. For detailed hazard, storage and transport information, request the SDS (Safety Data Sheet) with your inquiry.

Quotation & Packaging

Prices are confirmed by inquiry. Request a quote for current pricing, minimum order quantity (MOQ) and lead time. The pack sizes listed on this page are reference options; custom pack sizes and bulk quantities are available on request.

Quality & Compliance

Specifications and purity shown on this page are based on batch records. A Certificate of Analysis (COA) is available on request. For research and further manufacturing use only — not for direct human or therapeutic use.