3-甲基-L-组氨酸

Description

3-methyl-L-histidine · CAS 15507-76-3 · C7H11N3O2. UNII MEH8O8Y0H0. Solubility: 200 mg/mL at 25 °C; Collision Cross Section: 141.1 Ų [M-H]-; Collision Cross Section: 135.7 Ų [M+H]+.

Identification

CAS Registry Number	15507-76-3
PubChem CID	64969
Molecular formula	C7H11N3O2
IUPAC name	(2S)-2-amino-3-(3-methylimidazol-4-yl)propanoic acid
UNII (FDA)	MEH8O8Y0H0

Computed Descriptors

Molecular Weight	169.18
XLogP3	-3.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	3
Exact Mass	169.085126602
Monoisotopic Mass	169.085126602
Topological Polar Surface Area	81.1
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Solubility	200 mg/mL at 25 °C
Collision Cross Section	141.1 Ų [M-H]-
Collision Cross Section	135.7 Ų [M+H]+

Physical description & handling notes

• Solid; [Sigma-Aldrich MSDS]
• Solid
• 136.57 Ų [M+H]+ [CCS Type: DT; Method: stepped-field]
• 141.53 Ų [M-H]- [CCS Type: DT; Method: stepped-field]
• 134.37 Ų [M-H]- [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]
• 134.1 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]

GHS Hazard Classification

Reported hazard statements	H315 (100%), H319 (100%), H335 (100%)

Documented Uses

• Marker for myofibrillar-protein breakdown. [ChemIDplus]

Synonyms

3-Methyl-L-histidine; 368-16-1; 3-Methylhistidine; L-Histidine, 3-methyl-; (2S)-2-amino-3-(3-methylimidazol-4-yl)propanoic acid; MEH8O8Y0H0; DTXSID90920521; (2S)-2-azaniumyl-3-(3-methylimidazol-4-yl)propanoate; CHEBI:70959; DTXSID30861904; ntau-methylhistidine; 3-MeHis; N tau-methylhistidine; n(tau)-methylhistidine; RefChem:504237; 3 MEH

Frequently Asked Questions

What are the CAS number and molecular formula of 3-methyl-L-histidine?

CAS 15507-76-3; molecular formula C7H11N3O2; molecular weight — g/mol.

What other names is 3-methyl-L-histidine known by?

3-Methyl-L-histidine, 368-16-1, 3-Methylhistidine, L-Histidine, 3-methyl-, (2S)-2-amino-3-(3-methylimidazol-4-yl)propanoic acid, MEH8O8Y0H0.

Is 3-methyl-L-histidine classified as hazardous?

Hazard statements reported: H315, H319, H335.

What are the key physical properties of 3-methyl-L-histidine?

Solubility: 200 mg/mL at 25 °C; Collision Cross Section: 141.1 Ų [M-H]-; Collision Cross Section: 135.7 Ų [M+H]+.

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.