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21-1510

Sigma-Aldrich

Ninhydrin

SAJ special grade, ≥98.0%

Synonym(s):

1,2,3-Indantrione monohydrate, 2,2-Dihydroxy-1,3-indanedione, Trioxohydrindene monohydrate

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About This Item

Empirical Formula (Hill Notation):
C9H6O4
CAS Number:
485-47-2
Molecular Weight:
178.14
Beilstein:
1910963
EC Number:
207-618-1
MDL number:
MFCD00003791
UNSPSC Code:
12352100
PubChem Substance ID:
329752094

grade

SAJ special grade

Assay

≥98.0%

form

solid

availability

available only in Japan

mp

250 °C (dec.) (lit.)

SMILES string

OC1(O)C(=O)c2ccccc2C1=O

InChI

1S/C9H6O4/c10-7-5-3-1-2-4-6(5)8(11)9(7,12)13/h1-4,12-13H

InChI key

FEMOMIGRRWSMCU-UHFFFAOYSA-N

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Application

Used for the detection of free amino groups in amino acids, peptides and proteins.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Joseph Almog et al.
Journal of forensic sciences, 56 Suppl 1, S162-S165 (2011-01-14)
We explored the quality distribution of ninhydrin-developed prints on A4 bond paper in two groups of individuals, in Israel and in India. While the quality distributions of the developed marks in both countries had some dissimilarities, both groups showed the
Yu-Feng Xie et al.
Journal of neurochemistry, 122(3), 605-618 (2012-05-23)
Neurons located in the trigeminal subnucleus caudalis (Vc) play crucial roles in pain and sensorimotor functions in the orofacial region. Because of many anatomical and functional similarities with the spinal dorsal horn (SDH), Vc has been termed the medullary dorsal
Jianhui Gu et al.
Journal of tissue engineering and regenerative medicine, 6(2), 163-168 (2011-03-04)
This paper describes a clinical case study in which a chitosan/polyglycolic acid nerve guidance conduit (chitosan-PGA NGC) was utilized to repair a 30 mm long median nerve defect in the right distal forearm of a 55 year-old male patient. Thirty-six
Mendel Friedman
Journal of agricultural and food chemistry, 52(3), 385-406 (2004-02-05)
The reaction of ninhydrin with primary amino groups to form the purple dye now called Ruhemann's purple (RP) was discovered by Siegfried Ruhemann in 1910. In addition, imines such as pipecolic acid and proline, the guanidino group of arginine, the
Darren B Hansen et al.
Chemical Society reviews, 34(5), 408-417 (2005-04-27)
Following its discovery by Siegfried Ruhemann in 1910, ninhydrin rapidly became a practical analytical tool. In 1954 it was found to be an important reagent to develop fingerprints on porous surfaces. Since its use in forensic chemistry, many efforts have
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