Product Name

  • Name

    1-Methyl-L-histidine

  • EINECS 206-368-0
  • CAS No. 332-80-9
  • Article Data8
  • CAS DataBase
  • Density 1.37 g/cm3
  • Solubility
  • Melting Point ~240 °C (dec.)(lit.)
  • Formula C7H11N3O2
  • Boiling Point 415 °C at 760 mmHg
  • Molecular Weight 169.183
  • Flash Point 204.8 °C
  • Transport Information
  • Appearance
  • Safety 26-36-24/25-22
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 332-80-9 (1-Methyl-L-histidine)
  • Hazard Symbols IrritantXi
  • Synonyms Histidine,1-methyl-, L- (8CI);(S)-2-Amino-3-(1-methyl-1H-imidazol-4-yl)propanoic acid;1-Methylhistidine;1-N-Methyl-L-histidine;N1-Methyl-L-histidine;NSC 524367;
  • PSA 81.14000
  • LogP 0.07480

Synthetic route

(S)-7-(methoxycarbonyl)-2-methyl-5-oxo-5,6,7,8-tetrahydroimidazo[1,5-c] pyrimidin-2-ium iodide
69618-95-7

(S)-7-(methoxycarbonyl)-2-methyl-5-oxo-5,6,7,8-tetrahydroimidazo[1,5-c] pyrimidin-2-ium iodide

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride Heating;99%
Nα-Trityl-Nτ-methyl-L-histidin
118891-68-2

Nα-Trityl-Nτ-methyl-L-histidin

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With acetic acid In water; ethyl acetate for 1h; Heating;71%
L-histidine
71-00-1

L-histidine

methyl iodide
74-88-4

methyl iodide

A

3-methyl-L-histidine
368-16-1

3-methyl-L-histidine

B

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With ammonia; sodium
(S)-2-Amino-3-{5-[5-((S)-2-amino-2-carboxy-ethyl)-3-methyl-3H-imidazol-4-yldisulfanyl]-1-methyl-1H-imidazol-4-yl}-propionic acid
83471-81-2

(S)-2-Amino-3-{5-[5-((S)-2-amino-2-carboxy-ethyl)-3-methyl-3H-imidazol-4-yldisulfanyl]-1-methyl-1H-imidazol-4-yl}-propionic acid

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With nickel In ethanol for 0.5h; Heating;
1-methyl<2-(3)H>-L-histidine
124017-72-7

1-methyl<2-(3)H>-L-histidine

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With methylmercuric nitrate In water at 85℃; Rate constant; Mechanism; effect of pH; variation of concentration of MeHgNO3;
N-[(1,1-dimethylethoxy)carbonyl]-3-[(phenylmethoxy)methyl]-L-histidine
79950-65-5

N-[(1,1-dimethylethoxy)carbonyl]-3-[(phenylmethoxy)methyl]-L-histidine

methyl iodide
74-88-4

methyl iodide

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h; Multistep reaction;
N(α)-benzyloxycarbonyl-N(ϖ)-t-butoxymethyl-L-histidine methyl ester
90653-43-3

N(α)-benzyloxycarbonyl-N(ϖ)-t-butoxymethyl-L-histidine methyl ester

methyl iodide
74-88-4

methyl iodide

A

3-methyl-L-histidine
368-16-1

3-methyl-L-histidine

B

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h; Multistep reaction;
N(α)-benzyloxycarbonyl-N(ϖ)-(2-methoxyethoxy)methyl-L-histidine methyl ester
99523-88-3

N(α)-benzyloxycarbonyl-N(ϖ)-(2-methoxyethoxy)methyl-L-histidine methyl ester

methyl iodide
74-88-4

methyl iodide

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
Multistep reaction;
N(α)-benzyloxycarbonyl-N(ϖ)-(2-trimethylsilylethoxy)methyl-L-histidine methyl ester
99523-90-7

N(α)-benzyloxycarbonyl-N(ϖ)-(2-trimethylsilylethoxy)methyl-L-histidine methyl ester

methyl iodide
74-88-4

methyl iodide

A

3-methyl-L-histidine
368-16-1

3-methyl-L-histidine

B

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h; Multistep reaction;
N(α)-benzyloxycarbonyl-N(τ)-(2-trimethylsilylethoxy)methyl-L-histidine methyl ester
99523-91-8

N(α)-benzyloxycarbonyl-N(τ)-(2-trimethylsilylethoxy)methyl-L-histidine methyl ester

methyl iodide
74-88-4

methyl iodide

A

3-methyl-L-histidine
368-16-1

3-methyl-L-histidine

B

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h; Multistep reaction;
N(α)-benzyloxycarbonyl-N(ϖ)-(2,4,6-trimethylbenzyloxy)methyl-L-histidine methyl ester

N(α)-benzyloxycarbonyl-N(ϖ)-(2,4,6-trimethylbenzyloxy)methyl-L-histidine methyl ester

methyl iodide
74-88-4

methyl iodide

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With hydrogenchloride 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h; Multistep reaction;
1-Me-AcHis

1-Me-AcHis

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
With (2)H8O4Pd(2+); deuteroperchloric acid In water-d2 at 40℃; Rate constant;
N(α)-benzyloxycarbonyl-N(τ)-tert-butyloxycarbonyl-L-histidine methyl ester
90653-42-2

N(α)-benzyloxycarbonyl-N(τ)-tert-butyloxycarbonyl-L-histidine methyl ester

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 81 percent / CH2Cl2 / 1.) 0 deg C, 1 h, 2.) room temp., 3 h
View Scheme
Z-His-OMe
15545-10-5

Z-His-OMe

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 27 percent / triethylamine / ethyl acetate / 1.) 0 deg C, 1 h, 2.) room temp., 6 h.
2: 2.) 'constant boiling' hydrochloric acid / 1.) (DMF), 24 h, room temp., 2.) reflux, 24 h
View Scheme
L-5-sulfanyl-1-methylhistidine
62982-24-5

L-5-sulfanyl-1-methylhistidine

His(1-CH3)
332-80-9

His(1-CH3)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: air, iodide / H2O / 24 h
2: Raney Nickel / aq. ethanol / 0.5 h / Heating
View Scheme
n-butyllithium
109-72-8, 29786-93-4

n-butyllithium

His(1-CH3)
332-80-9

His(1-CH3)

(S)-methyl 2-amino-3-(1-methyl-1H-imidazol-4-yl)propanoate
57519-09-2

(S)-methyl 2-amino-3-(1-methyl-1H-imidazol-4-yl)propanoate

Conditions
ConditionsYield
With hydrogenchloride at 20℃;95%
formaldehyd
50-00-0

formaldehyd

His(1-CH3)
332-80-9

His(1-CH3)

(S)-3-methyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-6-carboxylic acid

(S)-3-methyl-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-6-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride In water at 0℃; Reflux;80%
His(1-CH3)
332-80-9

His(1-CH3)

(S)-2-Amino-3-{5-[5-((S)-2-amino-2-carboxy-ethyl)-3-methyl-3H-imidazol-4-yldisulfanyl]-1-methyl-1H-imidazol-4-yl}-propionic acid
83471-81-2

(S)-2-Amino-3-{5-[5-((S)-2-amino-2-carboxy-ethyl)-3-methyl-3H-imidazol-4-yldisulfanyl]-1-methyl-1H-imidazol-4-yl}-propionic acid

Conditions
ConditionsYield
Stage #1: His(1-CH3) With hydrogenchloride; N-Bromosuccinimide In water at 1℃; for 0.05h;
Stage #2: With tiolacetic acid In water at 0℃; for 0.5h;
Stage #3: With 3-mercaptopropionic acid In water at 100℃; for 20h;
65%
His(1-CH3)
332-80-9

His(1-CH3)

[αR-2H]-Nτ-methylhistamine
1205535-89-2

[αR-2H]-Nτ-methylhistamine

Conditions
ConditionsYield
With histidine decarboxylase; pyridoxal 5'-phosphate; water-d2 at 37℃; for 192h; pH=4.7; aq. phosphate buffer; Enzymatic reaction;58%
Dimethoxymethane
109-87-5

Dimethoxymethane

His(1-CH3)
332-80-9

His(1-CH3)

3-methylspinacine dihydrochloride
114787-98-3

3-methylspinacine dihydrochloride

Conditions
ConditionsYield
With hydrogenchloride 1) RT, overnight, 2) 3h, steam-bath;45%
His(1-CH3)
332-80-9

His(1-CH3)

[αR-3H]-Nτ-methylhistamine
1205535-90-5

[αR-3H]-Nτ-methylhistamine

Conditions
ConditionsYield
With (1)H,(3)H-water; histidine decarboxylase; pyridoxal 5'-phosphate at 37℃; for 192h; pH=4.7; aq. phosphate buffer; Enzymatic reaction;35%
chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

His(1-CH3)
332-80-9

His(1-CH3)

C10H19N3O2Si*ClH
118891-70-6

C10H19N3O2Si*ClH

Conditions
ConditionsYield
In chloroform for 1h; Heating;
peridoxal
19804-21-8

peridoxal

His(1-CH3)
332-80-9

His(1-CH3)

N-pyridoxylidene-L-Nτmethylhistidine
83984-06-9

N-pyridoxylidene-L-Nτmethylhistidine

Conditions
ConditionsYield
In methanol
bufotalin 3-hemisuberate p-nitrophenyl ester
61507-75-3

bufotalin 3-hemisuberate p-nitrophenyl ester

His(1-CH3)
332-80-9

His(1-CH3)

bufotalin 3-suberoyl-L-3-methylhistidine ester
90038-13-4

bufotalin 3-suberoyl-L-3-methylhistidine ester

Conditions
ConditionsYield
In pyridine; water for 12h; Ambient temperature;11 mg
His(1-CH3)
332-80-9

His(1-CH3)

1-methyl<2-(3)H>-L-histidine
124017-72-7

1-methyl<2-(3)H>-L-histidine

Conditions
ConditionsYield
With tritium oxide at 85℃; for 408h;
methanol
67-56-1

methanol

His(1-CH3)
332-80-9

His(1-CH3)

L-Nτ-methylhistidine methyl ester dihydrochloride

L-Nτ-methylhistidine methyl ester dihydrochloride

Conditions
ConditionsYield
With thionyl chloride at 0℃; for 3h; Heating / reflux;
His(1-CH3)
332-80-9

His(1-CH3)

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid methyl ester

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
View Scheme
His(1-CH3)
332-80-9

His(1-CH3)

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid methyl ester

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid methyl ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
View Scheme
His(1-CH3)
332-80-9

His(1-CH3)

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid
406939-49-9

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
3: 0.5N NaOH / methanol / 0.5 h / 20 °C
View Scheme
His(1-CH3)
332-80-9

His(1-CH3)

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid
406939-48-8

(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
3: 0.5N NaOH / methanol / 0.5 h / 20 °C
View Scheme
His(1-CH3)
332-80-9

His(1-CH3)

(S)-1-{(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionyl}-pyrrolidine-2-carboxylic acid amide

(S)-1-{(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((R)-3-oxo-cyclopentanecarbonyl)-amino]-propionyl}-pyrrolidine-2-carboxylic acid amide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
3: 0.5N NaOH / methanol / 0.5 h / 20 °C
4: 36 percent / HOBt; DCC / dimethylformamide / 0.8 h / 20 °C
View Scheme
His(1-CH3)
332-80-9

His(1-CH3)

(S)-1-{(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionyl}-pyrrolidine-2-carboxylic acid amide

(S)-1-{(S)-3-(1-Methyl-1H-imidazol-4-yl)-2-[((S)-3-oxo-cyclopentanecarbonyl)-amino]-propionyl}-pyrrolidine-2-carboxylic acid amide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 95 percent / HCl gas / 20 °C
2: ethyl acetate / 24 h / 20 °C
3: 0.5N NaOH / methanol / 0.5 h / 20 °C
4: 23 percent / HOBt; DCC / dimethylformamide / 0.8 h / 20 °C
View Scheme

1-Methyl-L-histidine Specification

The L-Histidine, 1-methyl-, with the CAS registry number 332-80-9, is also known as 3-(1-Methylimidazol-4-yl)-L-alanine. It belongs to the product categories of Pharmaceutical Raw Materials; Histidine [His, H]; Amino Acids and Derivatives; Amino Acids Methyl; Ethyl; t-Butyl Series. Its EINECS registry number is 206-368-0. This chemical's molecular formula is C7H11N3O2 and molecular weight is 169.18. What's more, its IUPAC name is (2S)-2-Amino-3-(1-methylimidazol-4-yl)propanoic acid and systematic name is called 1-Methyl-L-histidine.

Physical properties about L-Histidine, 1-methyl- are:(1) ACD/LogP: -1.31; (2) # of Rule of 5 Violations: 0; (3) ACD/LogD (pH 5.5): -4.37; (4) ACD/LogD (pH 7.4): -3.88; (5) ACD/BCF (pH 5.5): 1; (6) ACD/BCF (pH 7.4): 1; (7) ACD/KOC (pH 5.5): 1; (8) ACD/KOC (pH 7.4): 1; (9) #H bond acceptors: 5; (10) #H bond donors: 3; (11) #Freely Rotating Bonds: 4; (12) Polar Surface Area: 47.36 Å2; (13) Index of Refraction: 1.613; (14) Molar Refractivity: 42.69 cm3; (15) Molar Volume: 122.6 cm3; (16) Surface Tension: 55.4 dyne/cm; (17) Density: 1.37 g/cm3; (18) Flash Point: 204.8 °C; (19) Enthalpy of Vaporization: 70.43 kJ/mol; (20) Boiling Point: 415 °C at 760 mmHg; (21) Vapour Pressure: 1.25E-07 mmHg at 25 °C; (22) Melting Point: 240 °C.

When you are dealing with this chemical, you should be very careful. This chemical is irritating to eyes, respiratory system, skin and may cause inflammation to the skin or other mucous membranes. The gas of this chemical can not be breathed. Therefore, you should wear suitable protective clothing and avoid contacting with skin and eyes. And in case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C(O)[C@@H](N)Cc1ncn(c1)C
(2) InChI: InChI=1/C7H11N3O2/c1-10-3-5(9-4-10)2-6(8)7(11)12/h3-4,6H,2,8H2,1H3,(H,11,12)/t6-/m0/s1
(3) InChIKey: BRMWTNUJHUMWMS-LURJTMIEBU

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