CERTIFICATE OF ANALYSIS
Product Name METHYL PURPLE pH Indicator grade CAS Number 1340-02-9
Molecular Formula C 67 H 62 N 8 Na 4 O 14 S 3 Catalogue No. AL3100
Molecular Weight 1391.41 Batch Number
Manufacturing Date December-2020 Expire Date November-2025

TYPE OF TEST

STANDARD

OBSERVED
Description
pH range
Density
UV absorption
Dark Purple Powder
4.8 - 5.4, violet to green
1.001 g/mL at 25 °C
max 409 nm
max 618 nm (2nd)
Purple Powder
5
1.001 g/mL at 25 °C
max 409 nm
max 618 nm (2nd)
Result: The above product complies with LR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane