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Boc-L-Histidine(Tosyl)

Also known as: Boc-His(Tos)-OH, Boc-L-His(Tos)-OH, Boc-L-Histidine(Tosyl), N-alpha-BOC-N(im)-tosyl-L-histidine, Nalpha-(tert-Butoxycarbonyl)-tele-(p-toluenesulfonyl)-L-histidine, Nα-(tert-Butoxycarbonyl)-τ-(p-toluenesulfonyl)-L-histidine, Nα-Boc-τ-tosyl-L-histidine, N-(tert-Butoxycarbonyl)-1-[(4-methylphenyl)sulfonyl]-L-histidine, (2S)-3-[1-(4-methylphenyl)sulfonylimidazol-4-yl]-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid, (S)-2-((tert-Butoxycarbonyl)amino)-3-(1-tosyl-1H-imidazol-4-yl)propanoic acid, MFCD00065967

Boc-L-Histidine(Tosyl) (CAS 35899-43-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H23N3O6S and a molecular weight of 409.457 g/mol. Key properties include a melting point of ~125 °C (dec.) and a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35899-43-5
Jingsj CID
J-27392-7
Molecular Formula
C18H23N3O6S
Molecular Weight
409.457 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point~125 °C (dec.)
Density1.3±0.1 g/cm3
Exact Mass409.130768
PSA135.97000
LogP2.14
Refractive Index1.595

Activity & Biological Data

Additional Information[1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1144.

Customs & Trade Information

HS Code2933290090
Summary2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Boc-L-Histidine(Tosyl)?

The CAS number of Boc-L-Histidine(Tosyl) is 35899-43-5.

What are the molecular formula and molecular weight of Boc-L-Histidine(Tosyl)?

Boc-L-Histidine(Tosyl) has molecular formula C18H23N3O6S and molecular weight 409.457 g/mol.

What are the upstream and downstream products of Boc-L-Histidine(Tosyl)?

For Boc-L-Histidine(Tosyl), Upstream Products: p-Toluenesulfonyl chloride, Boc-His-OH; Downstream Products: L-Histidine, Deltorphin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Boc-L-Histidine(Tosyl) (CAS 35899-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27392-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.