3-Methylindole

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Product Description

3-Methylindole's cas code is 83-34-1

Product Detail

3-Methylindole Basic information

Chemical properties Uses The standard of allowable maximum amount and residue Production methods

Product Name:	3-Methylindole
CAS:	83-34-1
MF:	C9H9N
MW:	131.17
EINECS:	201-471-7
Mol File:	83-34-1.mol

3-Methylindole Chemical Properties

Melting point	92-97 °C(lit.)
Boiling point	265-266 °C(lit.)
density	1.0111 (estimate)
FEMA	3019 \| SKATOLE
refractive index	1.6070 (estimate)
Fp	132 °C
storage temp.	Store below +30°C.
pka	17.30±0.30(Predicted)
form	Crystalline Powder or Flakes
color	Almost white to pale brown
Odor	indole-like odor
Odor Threshold	0.0000056ppm
Water Solubility	Soluble in water, Ether, Alcohols, Benzene, Acetone, Chloroform.
Sensitive	Light Sensitive
JECFA Number	1304
Merck	14,8560
BRN	111296
Stability:	Stable, but light-sensistive. Stench! Incompatible with strong oxidizing agents, strong acids, acid ahydrides, acid chlorides. Combustible.
InChIKey	ZFRKQXVRDFCRJG-UHFFFAOYSA-N
CAS DataBase Reference	83-34-1(CAS DataBase Reference)
NIST Chemistry Reference	1H-Indole, 3-methyl-(83-34-1)
EPA Substance Registry System	3-Methylindole (83-34-1)

3-Methylindole Safety Information

Hazard Codes	Xi,N
Risk Statements	36/37/38-51/53
Safety Statements	26-36-61
RIDADR	UN3077 - class 9 - PG 3 - DOT/IATA UN3335 - Environmentally hazardous substances, solid, n.o.s., HI: all (not BR)
WGK Germany	2
RTECS	NM0350000
F	8-13
TSCA	Yes
HS Code	29339920
Hazardous Substances Data	83-34-1(Hazardous Substances Data)
Toxicity	MLD in frogs (mg/kg): 1000 s.c. (Bin-Ichi)

3-Methylindole Usage And Synthesis

Chemical properties	It is a kind of white crystal. The boiling point is 265-266 ° C; melting point is 93-96 ° C; soluble in 95% ethanol and oil spices three times of its volume. It has the indole-like incense of animals with a salty and strong flavor. The flavor is very strong, with a solid proliferating ability and a long lasting long time. High concentration of it makes people disgusting; only a very low concentration bears a large civet-like and animals-like incense. Moreover, It has a warm ripe fruit-like taste.
The standard of allowable maximum amount and residue	Name of additives: β-methyl indole Name of food allowable for the additive: food Function of the additive:Spices used in food Maximum allowable amount (g/kg):The amount of spices to compound essence should be lower than the allowable maximum amount and residue listed in GB 2760. Maximum allowable residue (g/kg):
Production methods	3-Methylindole present in civet, human, cheese, milk and tea. Propionaldehyde and phenylhydrazine can be heated to remove water molecules to obtain propanal phenylhydrazone in industrial production, and then the intermediates heated with zinc chloride or sulfuric acid, through the removal of ammonia molecules can obtain 3-Methylindole.
Chemical Properties	slightly brown platelets
Chemical Properties	Skatole has a characteristic putrid, fecal odor at high concentrations, becoming pleasant, jasmine-like, fruity sweet, warm at very low concentrations. It has a warm overripe fruity flavor below 1 ppm.
Uses	A highly fluorescent guanosine analogue, which in a dimethoxytrityl, phosphoramidite protected form, can be site-specifically inserted into oligonucleotides through a 3?5?phosphodiester linkage using an automated DNA synthesizer
Uses	insect attractant
Uses	A naturally abundant pneumotoxin, found primarily in mammalian feces providing its strong fecal odor. In lower concentrations however, the compound has a pleasent aroma, giving orange blossoms and ja smine their pleasing scent. It is often a component of commercial fragrances and perfumes.
Definition	ChEBI: A methylindole carrying a methyl substituent at position 3. It is produced during the anoxic metabolism of L-tryptophan in the mammalian digestive tract.
Aroma threshold values	Detection: 0.2 ppb
Safety Profile	Poison by ingestion, intravenous, and intraperitoneal routes. Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of NOx.
Chemical Synthesis	Indoles (skatole) with various substituents in the 2 and 3 position can be synthesized via the Fisher indole synthesis, which involves two steps and utilizes a phenylhydrazine and an aliphatic or aromatic aldehyde or ketone as starting materials.
Metabolic pathway	Three major metabolites of 14C-skatole are found in the plasma/urine of pigs given skatole and are identified as 6-sulfatoxyskatole, 3-hydroxy-3- methyloxindole, and the mercapturate adduct of skatole, 3-[(N-acetylcysteine-S-yl)methyl]indole. For other pathways, see the references in the text.