PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Anthracenedisulfonic acid, 4,8-diamino-9,10-dihydro-1,5-dihydroxy-9,10-dioxo, disodium salt, 2,6-; (Acid Blue 45; Alizarine Blue) 2861-02-1
4.00
3.00
Formula Synonyms
C14H8N2Na2O10S2
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
474.34 S
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
4.8 52 310
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.25 2.7 16
Technical Basis
A review of available sources identified rat and mouse LD50 toxicity data for various routes (oral, intraperitoneal). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The most preferred species and route data, a rat oral LD50 found on the European Chemical Agency (ECHA) database, was evaluated for the TEEL-3 basis but could not be used since it did not result in mortality. Instead, a mouse oral LD50 was selected as the TEEL-3 basis. TEEL-1 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Mouse oral LD50 (2900 mg/kg)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Acid-Blue-45 and https://www.chemicalbook.com/CASEN_2861-02-1.htm
Mouse oral LD50: Gigiena i Sanitariya. 53(10)(92), 1988. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Acid-Blue-45.
Rat oral LD50: https://chem.echa.europa.eu/100.018.799/dossier-view/43b6695d-52f2-427a-b6e9-87fdc2543506/ec093da5-00f0-4df4-b643-b4a491db7a84_619adb8e-589c-49a0-afd4-53e2bebfc0fa?searchText=2861-02-1
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.