ChemicalBook CAS DataBase List 6153-39-5

6153-39-5

Name	Orcinol monohydrate
CAS	6153-39-5
EINECS(EC#)	207-984-2
Molecular Formula	C7H10O3
MDL Number	MFCD00149092
Molecular Weight	142.15
MOL File	6153-39-5.mol

Synonyms

1,3-DIHYDROXY-5-METHYLBENZENE MONOHYDRATE 3,5-DIHYDROXYTOLUENE 3,5-DIHYDROXYTOLUENE, HYDRATE 3,5-DIHYDROXYTOLUENE MONOHYDRATE 5-METHYL-1,3-BENZENEDIOL MONOHYDRATE 5-METHYLRESORCINOL 5-METHYL RESORCINOL, HYDRATE 5-METHYLRESORCINOL MONOHYDRATE ORCINE ORCIN MONOHYDRATE ORCINOL ORCINOL MONOHYDRATE resorcinol,5-methyl-,monohydrate ORCINE MONOHYDRATE ORCINOL MONOHYDRATE 97% Orcinol-(3,5-Dihydroxytoluene,,5,MethylResorcinol) ORCINO Orcinol Monohydrate (5-Methylresorcinol monohydrate) 1,3-Benzenediol, 5-methyl-, monohydrate 3,5-DIHYDROXYTOLUENE MONOHYDRATE/ORCINOL MONOHYDRATE

Chemical Properties

Appearance	White to beige crystalline powder
Melting point	56-61 °C
Boiling point	290 °C
density	1.29
Fp	147°C/5mm
storage temp.	Store at RT.
solubility	H2O: soluble50mg/mL
form	Powder, Crystals or Flakes
color	off-white to tan
Stability:	Stable. Incompatible with strong oxidizing agents, strong acids. May be air-sensitive.
biological source	synthetic
Water Solubility	SOLUBLE
Sensitive	Air Sensitive
Merck	14,6864
BRN	5103474
Major Application	diagnostic assay manufacturing hematology histology
InChI	1S/C7H8O2.H2O/c1-5-2-6(8)4-7(9)3-5;/h2-4,8-9H,1H3;1H2
InChIKey	NBKPNAMTHBIMLA-UHFFFAOYSA-N
SMILES	O.Cc1cc(O)cc(O)c1
CAS DataBase Reference	6153-39-5(CAS DataBase Reference)

Safety Data

Hazard Codes	Xn
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . R22:Harmful if swallowed. R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . less more
Safety Statements	S37/39:Wear suitable gloves and eye/face protection . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . less more
WGK Germany	3
RTECS	VH2100000
TSCA	Yes
HS Code	29072100
Storage Class	11 - Combustible Solids
Hazard Classifications	Acute Tox. 4 Oral Eye Irrit. 2 Skin Irrit. 2 STOT SE 3

Hazard Information

Description

A pyranoquinolone alkaloid found in Oricia suaveolens, this base does not form salts with mineral acids. The structure has been established by synthesis as 6:7- dimethoxy-N-methylflindersine.

Chemical Properties

White to beige crystalline powder

Uses

5-Methylbenzene-1,3-diol Hydrate is the hydrated form of 3,5-Dihydroxytoluene(D454760); 3,5-Dihydroxytoluene is found in lichen fungi and can improve functional properties of lysozyme.

Uses

Orcinol monohydrate is usually used to prepare colorimetric reagents for the determination of RNA, DNA,and hexoses.

Uses

Reagent for sugars.

General Description

Orcinol is a small-molecule natural phenol involved in the production of a dye called orcein used for the staining of cells and chromosomes. Orcinol monohydrate is usually used to prepare a colorimetric reagent known as Bial′s reagent for the determination of RNA, DNA, and hexoses.

Purification Methods

Purify orcine by recrystallisation from H2O as the monohydrate. It sublimes in vacuo, and the anhydrous compound has m 106.5-108o (110o, 108o). It can be recrystallised from CHCl3 (plates) or *C6H6 (needles or prisms). [UV: Kiss et al. Bull Soc Chim Fr 275 1949, Adams et al. J Am Chem Soc 62 732 1940.]

References

Abe, Taylor., Phytochern., 10, 1167 (1971)

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